mardi 8 octobre 2013

Planetary nebula NGC 2392: the radiant death of a star (photo)

The remote server returned an unexpected response: (413) Request Entity Too Large.
The remote server returned an unexpected response: (413) Request Entity Too Large.
Planetary Nebula NGC 2392: The Radiant Death Of A Star (PHOTO) HPFB.init();
HuffPost's QuickRead...ShareBox.ad = function (tag_id){if ($(tag_id) == undefined) return; if ($(tag_id).innerHTML != '') return;ad_spec = {"zone_info": "huffpost.science","ord": 1373853333,"tile": 3,"width": 300,"height": 250,"el_id": tag_id + "_js","class_name": "ad_block ad_wide top","type": "iframe"}HuffPoUtil.WEDGJE.write(ad_spec, tag_id);};Loading... HuffPost's QuickRead... Loading... Weird Science iPhone app iPad app Android phone app Android tablet app More Log in Create Account Notifications Profile Settings Logout #topnav_margin_btm { margin:0 !important } .back-to-aol {display: inline-block !important;float: left;padding-top: 25px;position: absolute;} July 14, 2013 science Edition: U.S. CA Canada FR France IT Italia JP ?? (Japan)MG Maghreb ES España US United States UK United Kingdom FRONT PAGE Politics Obama Reacts To George Zimmerman Verdict4.5k Justice Department To Review Zimmerman Case7.5k Grimes Wows Democratic Donors1.7k Greenwald: Snowden Documents Could Be 'Worst Nightmare' For U.S.9.8k Poll: What Americans Really Think Of A Sarah Palin Senate Run6.2k Go to Politics More in Politics Pollster Politics Blog Speculatron Off The Bus Election Maps You might also like World Green Black Voices Latino Voices Gay Voices Business Chipotle Founder Reflects On First 20 Years Of The Chain364 UPS, FedEx Face Big Threat112 Disney World Is Tired Of Being Sued For So Much Money198 The Cities Where Wages Are Plummeting122 Man Sues Apple For Letting Him Watch Internet Porn711 Go to Business More in Business Small Business Money You might also like World Tech Media Arts Sports Weird News Crime Smarter Ideas Entertainment Beyonce Holds Moment Of Silence For Trayvon555 Harsh Words For Mumford & Sons, The Lumineers503 Remember This 'Thriller' Star? You Do Not Want To Miss Her Crazy New Video285 Rihanna Sounds Off On Zimmerman Trial353 'Gladiator' Sequel Was To Be Called 'Christ Killer'246 Go to Entertainment More in Entertainment Celebrity TV You might also like Comedy Arts Books Food Style Weird News Moviefone Arts Here's What Vincent Kartheiser Looks Like As Mr. Darcy81 LOOK: Have We Found A Six-Year-Old Jackson Pollock?89 The Floating Pool Is Officially Coming To NYC!140 The King Of Thrift Store Art Finds Artist Sculpts Deadly Viruses Go to Arts More in Arts Painting Film Design Photography Theater Architecture You might also like Books New York Los Angeles Tech Nearly 20 Percent Of Young Adults Admit To Doing This During Sex929 Inside The Massive Global Black Market For Smartphones1.9k Microsoft Discovers The Xbox Isn't Going To Make Everyone Happy254 LOOK: Life Before The Internet Was Incredible89 The Anti-PRISM Answer Techies Have Been Looking For?84 Go to Tech More in Tech TEDWeekends Social Media You might also like Small Business Green Science New York San Francisco Smarter Ideas TechCrunch Engadget Green PHOTOS: Animals Find Creative Ways To Cool Off Would You Swim In The Charles River?61 WATCH: Micro Pig Loves Getting His Tummy Rubbed40 Death Valley Officials: Stop Frying Eggs On Our Sidewalk77 WATCH: Incredible Lightning Strike Hits Power Lines Go to Green More in Green Energy Climate Change Animals Green Tech Green Holiday You might also like Politics Food World Science Healthy Living Taste Could Wraps Please Cease To Exist?60 Twinkies Are Back! What Can We Make Out Of Them?25 The Best Sodas, In Order18 9 Reasons To Reconsider Mustard Greens Ruth Bourdain UNMASKED Go to Taste More in Taste Recipes Baking Entertaining Healthy Eating Taste Tests Thanksgiving You might also like Food Healthy Living Travel OWN Education Superintendent: How Did Shooter Get Past Metal Detectors? 5.1k Bill Gates: Education Should Be America's Top Concern526 Students Write On Sandpaper Until Fingers Bleed, Teacher On Leave625 Parents, Students Upset Over Teacher's Violent Test Questions957 Schools' Realistic Shooting Drills 'Kind Of Scary,' Parents Say27 Go to Education More in Education Education Reform Teachers Bullying Ed-Lection 2012 You might also like College Teen Impact Parents Healthy Living Weird News Shape-Shifting UFO Lights Up Australian Sky (VIDEOS)116 Bus Driver Accused Of Lewd Act Behind The Wheel406 Bad (Ass) Dog Evades Capture 92 Times And Counting182 WATCH: Vampire Couple Drinks Each Other's Blood Weekly59 Stork Terrorizes German Village24 Go to Weird News More in Weird News Dumb Crime UFO World Records Anatomical Wonders Zombie Apocalypse Octomom You might also like Comedy Tech Science Crime LIVE Next Trayvon Trial's Over, So Now What? Next Living Single Ain't Easy Tomorrow Murdoch Under Fire Tomorrow Eric McCormack LIVE Tomorrow Kristen Johnston LIVE Go to HuffPost Live ALL SECTIONS NewsPoliticsWorldBusinessSmall BusinessMoneyMediaSportsEducationCrimeWeird NewsGood NewsEntertainmentEntertainmentCelebrityComedyArts & CultureBooksTVLife & StyleHealthy LivingGPS for the SoulStyleHomeFoodTaste WeddingsTravelParentsDivorceHuff/Post 50Marlo ThomasOWNTech & ScienceTechScienceGreenTEDWeekendsVoicesWomenBlack VoicesLatino VoicesVoces (en español)Gay VoicesReligionCollegeTeenImpactLocalChicagoDCDenverDetroitMiamiNew YorkLos AngelesSan FranciscoOur Mobile Apps iPhoneiPadHuffPost Live iPadAndroid PhoneAndroid Tablet ScienceAsteroidsBrainDinosaursGirls in STEMHuman OriginsISSMars RoverPhysicsSearch For E.T.SpaceflightTalk Nerdy To MeWeird Science

The Huffington Post | By Sara Gates  | Posted: 07/13/13 EDT

Planetary Nebula NGC 2392: The Radiant Death Of A Star (PHOTO) .badges_v2 .badge_v2_facebook_ipad_app:after {content:'Share';padding-left: 14px;text-align: center;width: 41px;}.badges_v2 .badge_v2_email_ipad_app:after {content:'Email';padding-left: 22px;}.badges_v2 .badge_v2_comments_ipad_app:after {content:'Comment';padding-left: 11px;}.badges_v2 .badge_v2_retweet_ipad_app:after {content:'Tweet';padding-left: 20px;} Get Science Newsletters:Subscribe #news_entries #ad_sharebox_260x60 img {padding:0px;margin:0px} Follow:NASA, NASA Photos, NGC 2392, Death Of Star, Death Of Star Photo, Dying Star, Dying Star Photo, End Of Star's Life, End Of Star's Life Photo, Nasa Star Photos, Nebula, Planetary Nebula Image, Planetary Nebula Photo, Solar System, Space, Science News

Stars burn long and bright, sometimes up to billions of years, so when it comes to the end of their life span, the celestial spheres tend to go out brilliantly.

Planetary nebula NGC 2392, a star located 4,200 light-years from Earth and now in one of its final phases of life, is no exception. This "Eskimo Nebula" meets its death in a radiant blaze of glory in a composite photo released by NASA on Thursday.

So which colors in the image correspond to parts of the nebula? NASA's Chandra X-ray Observatory explains in a statement :

This composite image of NGC 2392 contains X-ray data from NASA's Chandra X-ray Observatory in purple showing the location of million-degree gas near the center of the planetary nebula. Data from the Hubble Space Telescope show -- colored red, green, and blue -- the intricate pattern of the outer layers of the star that have been ejected.

(Story continues below)

nebulaThe composite photo of NGC 2392, provided by NASA, combines an X-ray shot and an optical image. (X-ray: NASA/CXC/IAA-CSIC/N.Ruiz et al, Optical: NASA/STScI)

The star's core of hydrogen has been completely depleted, so the planetary nebula expands and sheds its outer layers. As National Geographic notes, once the outer layers are cast away, the nebula will become a white dwarf -- a dense stellar remnant of the star's core. Most lower-mass stars follow this life cycle, but some more massive stars blow themselves apart in a violent explosion called a supernova.

Also on HuffPost:

Loading Slideshow...The Helix nebula

Feel like you are being watched? This infrared image from NASA's Spitzer Space Telescope shows the Helix nebula, a cosmic starlet notable for its vivid colors and eerie resemblance to a giant eye.

Stars Brewing in Cygnus X

A bubbling cauldron of star birth is highlighted in this image from NASA's Spitzer Space Telescope. Infrared light that we can't see with our eyes has been color-coded, such that the shortest wavelengths are shown in blue and the longest in red. The middle wavelength range is green.Massive stars have blown bubbles, or cavities, in the dust and gas--a violent process that triggers both the death and birth of stars. The brightest, yellow-white regions are warm centers of star formation. The green shows tendrils of dust, and red indicates other types of dust that may be cooler, in addition to ionized gas from nearby massive stars.

Dunes in Noachis Terra Region of Mars

This enhanced-color image shows sand dunes trapped in an impact crater in Noachis Terra, Mars. Dunes and sand ripples of various shapes and sizes display the natural beauty created by physical processes. The area covered in the image is about six-tenths of a mile (1 kilometer) across.Sand dunes are among the most widespread wind-formed features on Mars. Their distribution and shapes are affected by changes in wind direction and wind strength. Patterns of dune erosion and deposition provide insight into the sedimentary history of the surrounding terrain.

Viewing the South Pole of Vesta

This image obtained by the framing camera on NASA's Dawn spacecraft shows the south pole of the giant asteroid Vesta.Scientists are discussing whether the circular structure that covers most of this image originated by a collision with another asteroid, or by internal processes early in the asteroid's history. Images in higher resolution from Dawn's lowered orbit might help answer that question.The image was recorded with the framing camera aboard NASA's Dawn spacecraft from a distance of about 1,700 miles (2,700 kilometers). The image resolution is about 260 meters per pixel.

1a Supernova Remnant

This undated photo shows a classic type 1a supernova remnant. Researchers Saul Perlmutter and Adam Riess of the United States and US-Australian Brian Schmidt won the 2011 Nobel Physics Prize on October 4, 2011 for their research on supernovae.

In, Around, Beyond Rings

A quartet of Saturn's moons, from tiny to huge, surround and are embedded within the planet's rings in this Cassini composition.Saturn's largest moon, Titan, is in the background of the image, and the moon's north polar hood is clearly visible. See PIA08137 to learn more about that feature on Titan (3,200 miles, or 5,150 kilometers across). Next, the wispy terrain on the trailing hemisphere of Dione (698 miles, or 1,123 kilometers across) can be seen on that moon which appears just above the rings at the center of the image. See PIA10560 and PIA06163 to learn more about Dione's wisps. Saturn's small moon Pandora (50 miles, or 81 kilometers across) orbits beyond the rings on the right of the image. Finally, Pan (17 miles, or 28 kilometers across) can be seen in the Encke Gap of the A ring on the left of the image.The image was taken in visible blue light with the Cassini spacecraft narrow-angle camera on Sept. 17, 2011. The view was obtained at a distance of approximately 1.3 million miles (2.1 million kilometers) from Dione and at a Sun-Dione-spacecraft, or phase, angle of 27 degrees. Image scale is 8 miles (13 kilometers) per pixel on Dione.

X-Ray image of Young Stars

Combining almost opposite ends of the electromagnetic spectrum, this composite image of the Herschel in far-infrared and XMM-Newton's X-ray images obtained January 20, 2012, shows how the hot young stars detected by the X-ray observations are sculpting and interacting with the surrounding ultra-cool gas and dust, which, at only a few degrees above absolute zero, is the critical material for star formation itself. Both wavelengths would be blocked by Earth's atmosphere, so are critical to our understanding of the lifecycle of stars . (AFP / Getty Images)

Active Galaxy Centaurus A

Resembling looming rain clouds on a stormy day, dark lanes of dust crisscross the giant elliptical galaxy Centaurus A. Hubble's panchromatic vision, stretching from ultraviolet through near-infrared wavelengths, reveals the vibrant glow of young, blue star clusters and a glimpse into regions normally obscured by the dust. (NASA / ESA / Hubble Heritage)

Ring of Fire

This composite image shows the central region of the spiral galaxy NGC 4151. X-rays (blue) from the Chandra X-ray Observatory are combined with optical data (yellow) showing positively charged hydrogen (H II) from observations with the 1-meter Jacobus Kapteyn Telescope on La Palma. The red ring shows neutral hydrogen detected by radio observations with the NSF's Very Large Array. This neutral hydrogen is part of a structure near the center of NGC 4151 that has been distorted by gravitational interactions with the rest of the galaxy, and includes material falling towards the center of the galaxy. The yellow blobs around the red ellipse are regions where star formation has recently occurred. (NASA / CXC / CfA / J. Wang)

Flying V Galaxy

"These tidal tails are thin, elongated streams of gas, dust and stars that extend away from a galaxy into space. They occur when galaxies gravitationally interact with one another, and material is sheared from the outer edges of each body and flung out into space in opposite directions, forming two tails. They almost always appear curved, so when they are seen to be relatively straight, as in this image, it is clear that we are viewing the galaxies side-on."

Transit Of Venus

This image provided by NASA shows the Solar Dynamic Observatory's ultra-high-definition view of Venus, black dot at top center, passing in front of the sun on Tuesday, June 5, 2012. The next transit of Venus won't be for another 105 years. (NASA/Solar Dynamic Observatory/AP)

Festival of Lights

WISE, NASA's Wide-field Infrared Survey Explorer, has a new view of Barnard 3, or IRAS Ring G159.6-18.5, that is awash in bright green and red dust clouds. Interstellar clouds like these are stellar nurseries, where baby stars are being born. (UCLA / JPL-Caltech / NASA)

Pacman Nebula

In visible light, the star-forming cloud known as NGC 281 in the constellation of Cassiopeia appears to be chomping through the cosmos, earning it the nickname the "Pacman" nebula after the famous Pac-Man video game of the 1980s.

Dusty Space Cloud

This image shows the Large Magellanic Cloud galaxy in infrared light as seen by the Herschel Space Observatory, a European Space Agency-led mission with important NASA contributions, and NASA's Spitzer Space Telescope. In the instruments' combined data, this nearby dwarf galaxy looks like a fiery, circular explosion. Rather than fire, however, those ribbons are actually giant ripples of dust spanning tens or hundreds of light-years. Significant fields of star formation are noticeable in the center, just left of center and at right. The brightest center-left region is called 30 Doradus, or the Tarantula Nebula, for its appearance in visible light.

Remains of a Supernova.

This undated handout image provide by NASA combines data from four different space telescopes to create a multi-wavelength view of all that remains of the oldest documented example of a supernova, called RCW 86. NASA announced the findings Monday, Oct. 24, 2011, and said the exploded star was observed by the ancient Chinese in the year 185, and visible for eight months.

View from above

This image provided by NASA shows a night time image photographed by the Expedition 29 crew from the International Space Station on Oct. 16, 2011. It features airglow, Earth's terminator, Rocky Mountains, Denver-Colorado Springs (center-right), Santa Fe-Albuquerque (low-center-right), US Great Plains cities: Dallas-Oklahoma City, Kansas City and Chicago.

Transit of Venus

This image provided by NASA shows the image captured by Hinode on June 5, 2012 of the transit of Venus -- the last instance of this rare phenomenon until 2117. Hinode is a joint JAXA/NASA mission to study the connections of the sun's surface magnetism, primarily in and around sunspots. NASA's Marshall Space Flight Center in Huntsville, Ala., manages Hinode. The Smithsonian Astrophysical Observatory in Cambridge, Mass., is the lead U.S. investigator for the X-ray Telescope. (JAXA NASA/AP)

The silhouette of the space shuttle Endeavour, Feb 9, 2010

The silhouette of the space shuttle Endeavour appears over Earth's colorful horizon in this image photographed by an Expedition 22 crew member on Feb. 9, 2010.

Messier 78

Messier 78 Nebula brings into focus a murky region of star formation. NASA's Spitzer Space Telescope exposes the depths of this dusty nebula with its infrared vision, showing stellar infants that are lost behind dark clouds when viewed in visible light. Messier 78 is easily seen in small telescopes in the constellation of Orion

An image released on October 3, 2011 show the Antennae Galaxies (also known as NGC 4038 and 4039) are a pair of distorted colliding spiral galaxies about 70 million light-years away, in the constellation of Corvus (The Crow). This view combines Atacama large milllimetre/submillimetre array (ALMA) observations, made in three different wavelength ranges during the observatory's early testing phase, with visible-light observations from the NASA/ESA Hubble Space Telescope. Most of the ALMA test observations used to create this image were made using only twelve antennas working together -- far fewer than will be used for the first science observations. The first phase of operations at the ALMA complex in Chile's Atacama desert are underway on October 3, 2011 following ten years of construction. Alma's purpose is to study processes occurring a few hundred million years after the formation of the Universe when the first stars began to shine. Alma consists of an array of linked giant antennas on top of the highest plateau in the Atacama desert.AFP PHOTO/ALMA (ESO/NAOJ/NRAO) (Photo credit should read -/AFP/Getty Images)

North America Nebula

A swirling a landscape of stars known as the North America Nebula. In visible light, the region resembles North America, but in this image infrared view from NASA's Spitzer Space Telescope, the continent disappears.

WISE Telescope

In this undated image taken by the WISE telescope a massive star is shown plowing through space dust. The result is a brilliant bow shock, seen here as a yellow arc.

Mercury Messenger

At 5:20 a.m. EDT on March 29,2011, the Messenger probe captured this historic image of Mercury. The image is the first ever obtained from a spacecraft in orbit of the solar system's innermost planet. (NASA)

SuperMoon

The full moon rises near the Lincoln Memorial on March 19 in Washington. The full moon was called a "Super Perigee Moon" since it was at its closest to Earth in 2011. The last full moon so big and close to Earth occurred in March 1993. (Bill Ingalls, NASA / AFP / Getty Images)

Celestial Shamrock

This image from NASA's Wide-field Infrared Survey Explorer, or WISE, features a region of star birth wrapped in a blanket of dust, colored green in this infrared view. Designated as LBN 149.02-00.13, this interstellar cloud is made up of a shell of ionized gas surrounding a void with an extremely hot, bright star in the middle. (UCLA / JPL-Caltech / NASA)

Martian Gullies

This image from NASA's Mars Reconnaissance Orbiter shows portions of the Martian surface in unprecedented detail. The photo shows many channels from 1 meter to 10 meters wide (approximately 3 feet to 33 feet wide) on a scarp in the Hellas impact basin. Some larger channels on Mars that are sometimes called gullies are big enough to be called ravines on Earth. (NASA / AFP / Getty Images)

Cassini of Saturn/Titan

Saturn's largest moon, Titan, center, is 3,200 miles in diameter. The smaller moon Enceladus, far right, just over 300 miles across, appears just below the rings. The image was taken with the Cassini spacecraft wide-angle camera at a distance of approximately 524,000 miles from Titan. (SSI / JPL / NASA)

Discovery from the ISS

The space shuttle Discovery is seen from the International Space Station as the two orbital spacecraft accomplish their relative separation. During a post undocking fly-around, the crew of each vessel photographed the opposing craft. (NASA)

NGC 2841

This NASA image shows what the Hubble Space Telescope revealed in a majestic disk of stars and dust lanes in the spiral galaxy NGC 2841. A bright cusp of starlight marks the galaxy's center. Spiraling outward are dust lanes that are silhouetted against the population of whitish middle-aged stars. Much younger blue stars trace the spiral arms. NGC 2841 lies 46 million light-years away in the constellation of Ursa Major (The Great Bear). (Hubble Heritage / ESA / NASA)

Tempel 1

This image obtained by NASA's Stardust spacecraft shows Comet Tempel 1 at 11:39 p.m. EST on Feb. 14, 2011. The NASA spacecraft's flyby of the comet showed erosion on Tempel 1's surface since it skimmed by the sun in 2005 and revealed the first clear pictures of the crater made by a Deep Impact probe. (Cornell / JPL-Caltech / NASA)

Sun and Flares

A pair of active regions on the sun were captured in extreme ultraviolet light from the Solar Dynamic Observatory spacecraft over a three-day period. The magnetic field lines above the regions produced fluttering arcs waving above them, as well as a couple of flares. Another pair of smaller active regions emerges and trails behind the larger ones. (Solar Dynamics Observatory / NASA)

North America Nebula -- Feb 16, 2011

This view of the North America nebula combines both visible and infrared light observations, taken by the Digitized Sky Survey and NASA's Spitzer Space Telescope, respectively, into a single vivid picture. The nebula is named after its resemblance to the North American continent in visible light, which in this image is represented in blue hues. Infrared light, displayed here in red and green, can penetrate deep into the dust, revealing multitudes of hidden stars and dusty clouds.

Sun Eruptions -- Jan. 28, 2011

This still caught the action in freeze-frame splendor when the sun popped off two events at once. A filament, left, became unstable and erupted, while an M-1 flare and a coronal mass ejection, right, blasted into space. Neither event was headed toward Earth.

M51 -- obtained Jan. 19, 2011

This image shows a dramatic view of the spiral galaxy M51, dubbed the Whirlpool Galaxy. Seen in near-infrared light, most of the starlight has been removed, revealing the Whirlpool's skeletal dust structure. This image is the sharpest view of the dense dust in M51. The narrow lanes of dust revealed by Hubble reflect the galaxy's moniker, the Whirlpool Galaxy, as if they were swirling toward the galaxy's core.

Giant Supernova -- released on Jan. 14, 2011

While searching the skies for black holes using NASA's Spitzer Space Telescope, astronomers discovered a giant supernova that was smothered in its own dust in this image released on Jan. 14. In this artist's rendering, an outer shell of gas and dust -- which erupted from the star hundreds of years ago -- obscures the supernova within. This event in a distant galaxy hints at one possible future for the brightest star system in our own Milky Way.

Mars' moons Phobos (large moon) and Deimos, released Dec. 11

Mars' two moons have been photographed in the same frame for the first time. The European Space Agency's Mars Express orbiter snapped this image, which was released Dec. 11, 2009. The larger moon is Phobos. The much smaller one is Deimos.

Hubble photo of new galaxies (Tuesday=Dec. 8, 2009)

Scientists said Dec. 8, 2009, that the Hubble Space Telescope spotted several thousand never-before-seen galaxies that were formed 600 million years after the Big Bang. Here, a photo shows some of them. They appear in the image as the faintest and reddest objects.

Central Milky Way Galaxy; image released on Nov. 10, 2009

This is one of the most detailed images to date of the heart of the Milky Way. The galaxy's center is within the white spot near the right edge of the photo. NASA released the image Nov. 10 to mark the 400th anniversary of the telescope. It is a composite of images from three observatories: the Hubble and Spitzer space telescopes and the Chandra X-ray Observatory.

NGC 2623, the result of a galactic collision, added Oct. 13

This Hubble Space Telescope image shows an object known as both NGC 2623 and Arp 243, which was formed by a collision of two galaxies. The galaxies' cores have merged into one; the tails streaming from the object are full of young stars. NGC 2623 is about 250 million light-years away in the constellation of Cancer.

Barnard's Galaxy, added Oct. 15, 2009

This portrait of Barnard's Galaxy, one of the Milky Way's closest neighbors, was taken by a telescope at the European Southern Observatory in La Silla, Chile. The red features in the photo are nebulae where new stars are being born. The galaxy has about 10 million stars; the Milky Way has an estimated 400 billion.

Saturn during equinox in August 2009

The Cassini spacecraft became the first to photograph an equinox on Saturn, a 15-year event that took place Aug. 11. This photo is a composite of images that Cassini shot over eight hours. New equinox images of the planet show strange formations in its rings and suggest that in some places, the rings are much thicker than expected.

Shadows in Saturn's A ring, August 2009

Clumps of debris cast shadows that are visible in the middle of this image of Saturn's A ring. The shadows suggest that the clumps are about 2,000 feet tall. Scientists have believed for years that the rings were about 30 feet thick, but based on the new images, scientists now think that they're more than 2 miles deep in some spots. "Isn't that the most outrageous thing you could imagine? It truly is like something out of science fiction," said Carolyn Porco, leader of the Cassini imaging team.

Arp 147 composite black holes -- obtained Feb 15, 2011

This composite image of Arp 147, a pair of interacting galaxies located about 430 million light-years from Earth, shows X-rays from the NASA's Chandra X-ray Observatory (pink) and optical data from the Hubble Space Telescope (red, green, blue) produced by the Space Telescope Science Institute. Arp 147 contains the remnant of a spiral galaxy, right, that collided with the elliptical galaxy on the left. This collision has produced an expanding wave of star formation that shows up as a blue ring containing an abundance of massive young stars. These stars race through their evolution in a few million years or less and explode as supernovas, leaving behind neutron stars and black holes.

Jupiter's Scar, July 25, 2009

A new photo released in July from the Hubble Space Telescope is the clearest yet of what astronomers are calling a scar on the surface of Jupiter. An object, possibly a comet, struck the planet recently, creating the strange dark patch. It happened on the 15th anniversary of another comet strike.

Kohoutek 4-55 nebula, photographed May 4, 2009

This planetary nebula, named Kohoutek 4-55, was photographed May 4 by the Hubble Space Telescope's Wide Field Planetary Camera 2. The nebula, dubbed a "giant eye," contains the outer layers of a red giant star that died. The camera, which is the size of a baby grand piano, has captured several memorable images since it was installed in 1993.

Black hole light show, added April 14

In this sequence of photos released in April, a jet of gas spews from a massive black hole in the center of the M87 galaxy. The gas fades and brightens, with a peak that even outshines the galaxy's core. The outburst is coming from a blob of matter, dubbed HST-1, and scientists are so far at a loss to explain its weird behavior.

Galaxy Triplet ARP 274, Added April 6

This photo was snapped by the Hubble Space Telescope after winning a public competition to determine what the next space portrait should be. It shows Arp 274, a system of three galaxies -- two larger ones on the right, and a smaller and less intact one on the far left.

Hubble pic of galaxy tug of war, story reported on March 3, 2009

NASA's Hubble Space Telescope captured an image of three galaxies playing a game of gravitational tug-of-war that could destroy one of them. The galaxies -- NGC 7173, middle left, NGC 7174, middle right, and NGC 7176, lower right -- are about 100 million light-years away. The photo was released March 3.

Red Rectangle nebula added Feb. 10, 2009

Our solar system is in the middle of a cosmic dust storm, and some astronomers said they've zeroed in on the possible source: the Red Rectangle nebula, which is 2,300 light-years away in the constellation Monoceros. A double star system there is spewing the dust, according to findings announced in February.

Galactic collision, Oct. 30, 2008

After transmission problems on the Hubble Telescope weren fixed, NASA in October 2008 provided this undated photograph showing the aftermath of galaxies colliding. In the pair known as Arp 147, a reddish-colored galaxy has passed through an O-shaped galaxy glowing blue.

Mercury Volcanoes

Photographs taken of Mercury by the spacecraft Messenger in January 2008 were analyzed in the journal Science seven months later. Images like the one above show that volcanic activity played a part in forming plains on the planet.

#hp-slideshow-wrapper-22393 .hp-slideshow-wrapper-loading-div{font-family:Arial,"Helvetica Neue",Helvetica,sans-serif!important;display:none!important;}#hp-slideshow-wrapper-22393.hp-slideshow-wrapper-loading .hp-slideshow-wrapper-loading-div{display:block!important;text-align:center;padding:10px;background:#fff;border-radius: 8px;margin:40% 180px auto !important;box-shadow:0 4px 6px rgba(0,0,0,.5);}#hp-slideshow-wrapper-22393.hp-slideshow-wrapper-loading .hp-slideshow-wrapper-loading-div em{font-size:14px!important;line-height:16px!important;font-style:normal!important;color:#777!important;margin:0 0 6px !important;display:block;}#hp-slideshow-wrapper-22393.hp-slideshow-wrapper-loading .hp-ss-wrapper{display:none;}#hp-slideshow-wrapper-22393.hp-slideshow-wrapper-loading ul{width:5px!important;height:5px!important;overflow:hidden!important;position:absolute!important;font-size:4px!important;}#hp-slideshow-wrapper-22393.hp-slideshow-wrapper-loading{background:#e3e3e3!important;padding:10px!important;width:570px!important;height:555px!important;} Contribute to this Story: Send us a tip Send us a photo or video Suggest a correction FOLLOW SCIENCE Like 40k   Get Alerts #taboola-autosized-1r-organic { padding-top: 20px; } #taboola-autosized-generated-2r { padding-top: 20px; } #taboola-autosized-1r-sc { padding-top: 20px; }
#ad_bottom_article_text {margin-bottom: 15px} Related News On Huffington Post:  
Ring Nebula's Shape More Like Jelly Doughnut Than Bagel, Hubble Space Telescope PHOTOS Show Green Nebula VIDEO From ESO Zooms In On 'Ghostly' Gas Clouds ESO Finds 'Ghostly Green Bubble' Planetary Nebula IC 1295 (PICS) 'Valentine Rose' Nebula Blooms in Deep Space (PHOTO) Seagull Nebula PHOTOS Captured By European Southern Observatory 'Manatee Nebula,' Officially Known As W50, Will Be Renamed After Endangered Sea Mammal (PHOTO) Abell 30: 'Born Again' Planetary Nebula Foreshadows Death Of Sun

Ring Nebula's Shape More Like Jelly Doughnut Than Bagel, Hubble Space Telescope PHOTOS Show

By: Tariq Malik Published: 05/23/2013 05:10 PM EDT on SPACE.com The iconic Ring Nebula may seem like just a stunning circle of wispy interstellar gas,...

Green Nebula VIDEO From ESO Zooms In On 'Ghostly' Gas Clouds

By: Miriam Kramer Published: 04/10/2013 10:27 AM EDT on SPACE.com An amazing new photo from a telescope in Chile has captured the most detailed view...

ESO Finds 'Ghostly Green Bubble' Planetary Nebula IC 1295 (PICS)

Astronomers have found what they have described as a "ghostly green bubble" enveloping stars like an expanding ball of slime. The picture, taken by the...

'Valentine Rose' Nebula Blooms in Deep Space (PHOTO)

By: Miriam Kramer Published: 02/14/2013 06:45 AM EST on SPACE.com A strange nebula in deep space shines like a cosmic rose in a new photo...

Seagull Nebula PHOTOS Captured By European Southern Observatory

By: Tariq Malik Published: 02/07/2013 07:52 AM EST on SPACE.com Eye-popping new images from a telescope in Chile reveal a new look at the Seagull...

'Manatee Nebula,' Officially Known As W50, Will Be Renamed After Endangered Sea Mammal (PHOTO)

By: Clara Moskowitz Published: 01/19/2013 09:45 AM EST on SPACE.com A watery-looking nebula in deep space is being renamed after the sea creature it strongly...

Abell 30: 'Born Again' Planetary Nebula Foreshadows Death Of Sun

By: SPACE.com Staff Published: 11/29/2012 07:36 AM EST on SPACE.com New images of a "born-again" planetary nebula give a glimpse of what our sun might...   Loading... Around the Web:

What is a Planetary Nebula? | Planetary Nebula Definition | Space ...

The Spectacular Death of Stars --Planetary Nebula NGC 2392

The Flaming Skull Nebula. Seriously.

    Comments133Pending Comments0 View FAQ Previewing Your Comment. This comment has not yet been posted You have exceeded your word limit by    words. Please click the "Edit" button and shorten your comment.

Post Comment Edit Cancel

You can post to us this information Contact us Click here to leave a comment.HuffPost High School welcomes a lively, thoughtful debate in the comment section. Keep in mind that the articles here are penned by young authors, so please keep criticism respectful, and help us to keep this a safe and supportive place for writers of all ages to contribute.Post CommentPreview Comment To reply to a Comment: Click "Reply" at the bottom of the comment; after being approved your comment will appear directly underneath the comment you replied to. Post Comment Preview Comment To reply to a Comment: Click "Reply" at the bottom of the comment; after being approved your comment will appear directly underneath the comment you replied to.

Share your Comment:

Post to Facebook. Post to Blogger. Post to Twitter. Post to WordPress. Post to TypePad. Post to Tumblr. Post to Yahoo! Blogger login: Blogger password: Select blog: refresh list Remember me: Wordpress host: Wordpress login: Wordpress password: Remember me: TypePad host: TypePad login: TypePad password: Select blog: refresh list Remember me: Tumblr login: Tumblr password: Remember me: Community Notice:  We've made some changes to our badge program, including the addition
of our newest badge: Community Curator. View AllFavorites Recency |  Popularity Page: 1 2 3 Next › Last » (3 total) HUFFPOST SUPER USERJune25831 Fans 3 hours ago ( 6:52 PM)Lets hope there wasn't a civilization circling that star 4000 years ago.June25: Lets hope there wasn't a civilization circling that star 4000http://www.huffingtonpost.com/social/June25/planetary-nebula-death-star-end-photo_n_3587425_268846279.htmlHistory |Permalink |Share itThis comment has been down-ranked into oblivion. View comment You have not right to carry out this operation or Error this operation. spinnerLoading comments… HUFFPOST SUPER USERfrank1946Tell the Truth647 Fans 3 hours ago ( 6:16 PM)WOW................Einstein never said it could be so beautiful !

Kids enjoy this kind of stuff !

Me too.frank1946: WOW................Einstein never said it could be so beautiful ! Kidshttp://www.huffingtonpost.com/social/frank1946/planetary-nebula-death-star-end-photo_n_3587425_268836438.htmlHistory |Permalink |Share itThis comment has been down-ranked into oblivion. View comment You have not right to carry out this operation or Error this operation. spinnerLoading comments… This user has chosen to opt out of the Badges program photoeddtrm148 Fans 3 hours ago ( 6:04 PM)That photo is awesome. When I looked at it, I thought of an "Outer Limits" episode that had a similar photo. Or video.eddtrm: That photo is awesome. When I looked at it, Ihttp://www.huffingtonpost.com/social/eddtrm/planetary-nebula-death-star-end-photo_n_3587425_268832719.htmlHistory |Permalink |Share itThis comment has been down-ranked into oblivion. View comment You have not right to carry out this operation or Error this operation. spinnerLoading comments… photoHUFFPOST SUPER USERCarolinaDemthey DID take the last train for the coast!923 Fans 6 hours ago ( 3:58 PM)I think it's embarassingly unprofessional for professional scientists and science writers to anthropomorphize physical phenomena as if they were assisting non-professionals to 'understand'. If they seriously think the best they can do is to describe the explosive climax of a gravitational accumulation of gas as the 'death' of an entity, then they are both in need of literary education and naive, if not immature, about what the death of living beings really means to others. We could use some decent expository science education for non-scientists, but of course that takes a kind of brains we seem to have in short supply.CarolinaDem: I think it's embarassingly unprofessional for professional scientists and sciencehttp://www.huffingtonpost.com/social/CarolinaDem/planetary-nebula-death-star-end-photo_n_3587425_268795561.htmlHistory |Permalink |Share it photoHUFFPOST SUPER USERKiri the Unicornaudio-animatronic amateur astronomer277 Fans 2 hours ago ( 7:04 PM)Relax, it's just a metaphor...Kiri_the_Unicorn: Relax, it's just a metaphor...http://www.huffingtonpost.com/social/Kiri_the_Unicorn/planetary-nebula-death-star-end-photo_n_3587425_268849737.htmlHistory |Permalink |Share it palindrom972 Fans 4 minutes ago ( 9:28 PM)People also have objected to the timeworn phrase "stellar evolution" because nothing Darwinian is happening, suggesting "stellar development" in its place.

To which the astronomical community replied with a collective "meh".palindrom: People also have objected to the timeworn phrase "stellar evolution"http://www.huffingtonpost.com/social/palindrom/planetary-nebula-death-star-end-photo_n_3587425_268885169.htmlHistory |Permalink |Share itThis comment has been down-ranked into oblivion. View comment You have not right to carry out this operation or Error this operation. spinnerLoading comments…This comment has been down-ranked into oblivion. View comment You have not right to carry out this operation or Error this operation. spinnerLoading comments… david9876567 Fans 2 hours ago ( 7:46 PM)Carolina, you are wrong: "The study of the birth, life and death of stars is central to the field of astronomy."

http://science.nasa.gov/astrophysics/focus-areas/how-do-stars-form-and-evolve/david98765: Carolina, you are wrong: "The study of the birth, lifehttp://www.huffingtonpost.com/social/david98765/planetary-nebula-death-star-end-photo_n_3587425_268860687.htmlHistory |Permalink |Share itThis comment has been down-ranked into oblivion. View comment You have not right to carry out this operation or Error this operation. spinnerLoading comments…This comment has been down-ranked into oblivion. View comment You have not right to carry out this operation or Error this operation. spinnerLoading comments… photoDjay025217th Airborne..a tribute to my Father1132 Fans 6 hours ago ( 3:55 PM)It happened over 4,000 years ago....this is old news HP!Djay0252: It happened over 4,000 years ago....this is old news HP!http://www.huffingtonpost.com/social/Djay0252/planetary-nebula-death-star-end-photo_n_3587425_268794745.htmlHistory |Permalink |Share itThis comment has been down-ranked into oblivion. View comment You have not right to carry out this operation or Error this operation. spinnerLoading comments… photoSynkalae61 Fans   6 hours ago ( 3:52 PM)Hate to tell you, but this happened 4200 years ago.Synkalae: Hate to tell you, but this happened 4200 years ago.http://www.huffingtonpost.com/social/Synkalae/planetary-nebula-death-star-end-photo_n_3587425_268793660.htmlHistory |Permalink |Share it palindrom972 Fans 12 seconds ago ( 9:32 PM)Astronomers routinely ignore the light-travel time, except when it really matters.

If we look out billions of light years, the universe was significantly different when the light left it -- that's important.

And in a fascinating twist, astronomers have found "light echos" from supernovae whose outbursts reached us hundreds of years ago. That's another phenomenon in which the finite speed of light is important.

But for the most part, it's not a big deal, because the overall properties of the Galaxy etc. don't change significantly in a few thousand years. If it wasn't this planetary, it'd be another one.palindrom: Astronomers routinely ignore the light-travel time, except when it reallyhttp://www.huffingtonpost.com/social/palindrom/planetary-nebula-death-star-end-photo_n_3587425_268886002.htmlHistory |Permalink |Share itThis comment has been down-ranked into oblivion. View comment You have not right to carry out this operation or Error this operation. spinnerLoading comments…This comment has been down-ranked into oblivion. View comment You have not right to carry out this operation or Error this operation. spinnerLoading comments… photoCoasterrTolerance + Education + Technology = Peace264 Fans 6 hours ago ( 3:29 PM)The article didn't mention that some stars last trillions of years and since the age of the universe is only billions of years old that means that the universe is very young.Coasterr: The article didn't mention that some stars last trillions ofhttp://www.huffingtonpost.com/social/Coasterr/planetary-nebula-death-star-end-photo_n_3587425_268786924.htmlHistory |Permalink |Share it photoHUFFPOST SUPER USERKiri the Unicornaudio-animatronic amateur astronomer277 Fans 3 hours ago ( 6:54 PM)I'm afraid that's incorrect.

The lowest-mass stars ("red dwarfs") are *projected* to last trillions of years, according to our current models of stellar evolution. No fully-evolved stars of this class have been observed, as the universe is, as you say, billions of years old.Kiri_the_Unicorn: I'm afraid that's incorrect. The lowest-mass stars ("red dwarfs") arehttp://www.huffingtonpost.com/social/Kiri_the_Unicorn/planetary-nebula-death-star-end-photo_n_3587425_268846963.htmlHistory |Permalink |Share it photoCoasterrTolerance + Education + Technology = Peace264 Fans 2 hours ago ( 7:13 PM)What is incorrect?Coasterr: What is incorrect?http://www.huffingtonpost.com/social/Coasterr/planetary-nebula-death-star-end-photo_n_3587425_268851962.htmlHistory |Permalink |Share itThis comment has been down-ranked into oblivion. View comment You have not right to carry out this operation or Error this operation. There are More Comments on this Thread. Click Here To See them AllspinnerLoading comments…This comment has been down-ranked into oblivion. View comment You have not right to carry out this operation or Error this operation. spinnerLoading comments…This comment has been down-ranked into oblivion. View comment You have not right to carry out this operation or Error this operation. spinnerLoading comments… This user has chosen to opt out of the Badges program photoPat Loudoun89 Fans 7 hours ago ( 2:46 PM)I thought this was a story on that guy from Glee.Pat_Loudoun: I thought this was a story on that guy fromhttp://www.huffingtonpost.com/social/Pat_Loudoun/planetary-nebula-death-star-end-photo_n_3587425_268774480.htmlHistory |Permalink |Share itThis comment has been down-ranked into oblivion. View comment You have not right to carry out this operation or Error this operation. spinnerLoading comments… photoLenny Newball11 Fans 7 hours ago ( 2:44 PM)How awesome is that picture, am glad we have the ability to see these stellar events. Thank god(LOL) people didn't stop looking up at the stars and questioning what was in the sky.Lenny_Newball: How awesome is that picture, am glad we have thehttp://www.huffingtonpost.com/social/Lenny_Newball/planetary-nebula-death-star-end-photo_n_3587425_268773707.htmlHistory |Permalink |Share it This user has chosen to opt out of the Badges program jfd00138 Fans 7 hours ago ( 2:57 PM)Unfortunately a lot of what used to be visible from Earth is no longer due to irresponsible lighting. I remember as a kid in the 50s seeing the Andromeda galaxy from my back yard in a small city. Now I can't even find it with a small telescope and I live in what's supposed to be a rural area. Check out the Globe at Night project for more informationjfd001: Unfortunately a lot of what used to be visible fromhttp://www.huffingtonpost.com/social/jfd001/planetary-nebula-death-star-end-photo_n_3587425_268777708.htmlHistory |Permalink |Share it This user has chosen to opt out of the Badges program photoeddtrm148 Fans 4 hours ago ( 5:53 PM)If you live near Pennsylvania. There is a great place to look at stars. It is called Cherry Springs. My kids camp ther every year with friends. But, you have to go when there is no moon. They say it is the darkest area of PA.eddtrm: If you live near Pennsylvania. There is a great placehttp://www.huffingtonpost.com/social/eddtrm/planetary-nebula-death-star-end-photo_n_3587425_268829695.htmlHistory |Permalink |Share itThis comment has been down-ranked into oblivion. View comment You have not right to carry out this operation or Error this operation. There are More Comments on this Thread. Click Here To See them AllspinnerLoading comments…This comment has been down-ranked into oblivion. View comment You have not right to carry out this operation or Error this operation. spinnerLoading comments…This comment has been down-ranked into oblivion. View comment You have not right to carry out this operation or Error this operation. spinnerLoading comments… photoHUFFPOST SUPER USERforty8rGerrman Freethinker1500 Fans 7 hours ago ( 2:36 PM)The fate of our star in the future. The earth and human beings will be long gone before this happens.forty8r: The fate of our star in the future. The earthhttp://www.huffingtonpost.com/social/forty8r/planetary-nebula-death-star-end-photo_n_3587425_268771262.htmlHistory |Permalink |Share itThis comment has been down-ranked into oblivion. View comment You have not right to carry out this operation or Error this operation. spinnerLoading comments… photoHUFFPOST SUPER USERSeattleHomeWhat we need is more cowbell799 Fans 7 hours ago ( 2:31 PM)Look, it's the Republican Party.SeattleHome: Look, it's the Republican Party.http://www.huffingtonpost.com/social/SeattleHome/planetary-nebula-death-star-end-photo_n_3587425_268769883.htmlHistory |Permalink |Share it Gilc6523 Fans 7 hours ago ( 2:40 PM)That's far too beautiful.Gilc65: That's far too beautiful.http://www.huffingtonpost.com/social/Gilc65/planetary-nebula-death-star-end-photo_n_3587425_268772505.htmlHistory |Permalink |Share it photoHUFFPOST SUPER USERSeattleHomeWhat we need is more cowbell799 Fans 7 hours ago ( 2:41 PM)The implosion part. SeattleHome: The implosion part. http://www.huffingtonpost.com/social/SeattleHome/planetary-nebula-death-star-end-photo_n_3587425_268772729.htmlHistory |Permalink |Share itThis comment has been down-ranked into oblivion. View comment You have not right to carry out this operation or Error this operation. There are More Comments on this Thread. Click Here To See them AllspinnerLoading comments…This comment has been down-ranked into oblivion. View comment You have not right to carry out this operation or Error this operation. spinnerLoading comments…This comment has been down-ranked into oblivion. View comment You have not right to carry out this operation or Error this operation. spinnerLoading comments… HUFFPOST SUPER USERlambdin1What's this?703 Fans 7 hours ago ( 2:22 PM)We all should be so lucky to die in such a beautiful way!lambdin1: We all should be so lucky to die in suchhttp://www.huffingtonpost.com/social/lambdin1/planetary-nebula-death-star-end-photo_n_3587425_268767236.htmlHistory |Permalink |Share it robdot8 Fans 7 hours ago ( 3:01 PM)You were born that way.robdot: You were born that way.http://www.huffingtonpost.com/social/robdot/planetary-nebula-death-star-end-photo_n_3587425_268778887.htmlHistory |Permalink |Share it HUFFPOST SUPER USERlambdin1What's this?703 Fans 3 hours ago ( 6:06 PM)Yes. We all are star dust!!!lambdin1: Yes. We all are star dust!!!http://www.huffingtonpost.com/social/lambdin1/planetary-nebula-death-star-end-photo_n_3587425_268833396.htmlHistory |Permalink |Share itThis comment has been down-ranked into oblivion. View comment You have not right to carry out this operation or Error this operation. spinnerLoading comments…This comment has been down-ranked into oblivion. View comment You have not right to carry out this operation or Error this operation. spinnerLoading comments…This comment has been down-ranked into oblivion. View comment You have not right to carry out this operation or Error this operation. spinnerLoading comments… photoProCynicThose that govern intend to be our masters.659 Fans 7 hours ago ( 2:17 PM)When did it actually blow? Did we look at it a year ago and it was just a normal star sitting there and then last week it blew? Or, has it been this way since we first noticed it?ProCynic: When did it actually blow? Did we look at ithttp://www.huffingtonpost.com/social/ProCynic/planetary-nebula-death-star-end-photo_n_3587425_268765712.htmlHistory |Permalink |Share it photoKidSampson244 Fans 7 hours ago ( 2:37 PM)It didn't blow. The hydrogen in its core burned out, causing a layer around the core to begin fusion. That gradually turned it into a red giant as cooler outer layers of hydrogen were pushed away from the center, eventually escaping and forming the nebula you see in the photograph. To blow up in a supernova, it would have had to be quite a bit more massive.KidSampson: It didn't blow. The hydrogen in its core burned out,http://www.huffingtonpost.com/social/KidSampson/planetary-nebula-death-star-end-photo_n_3587425_268771760.htmlHistory |Permalink |Share itThis comment has been down-ranked into oblivion. View comment You have not right to carry out this operation or Error this operation. spinnerLoading comments… photoSynkalae61 Fans   6 hours ago ( 3:53 PM)4200 years ago.Synkalae: 4200 years ago.http://www.huffingtonpost.com/social/Synkalae/planetary-nebula-death-star-end-photo_n_3587425_268793909.htmlHistory |Permalink |Share itThis comment has been down-ranked into oblivion. View comment You have not right to carry out this operation or Error this operation. There are More Comments on this Thread. Click Here To See them AllspinnerLoading comments… spinnerLoading comments… spinnerLoading comments…This comment has been down-ranked into oblivion. View comment You have not right to carry out this operation or Error this operation. spinnerLoading comments… KingJames2k136 Fans 8 hours ago ( 2:00 PM)If we are all children of the stars, then who created the stars? Supposedly level 3 civilizations can create their own stars, so perhaps another ultra advanced civilization gave birth to our galaxy? Oh so many questions, so many questions...KingJames2k13: If we are all children of the stars, then whohttp://www.huffingtonpost.com/social/KingJames2k13/planetary-nebula-death-star-end-photo_n_3587425_268760452.htmlHistory |Permalink |Share it robdot8 Fans 6 hours ago ( 3:02 PM)No one created the stars.robdot: No one created the stars.http://www.huffingtonpost.com/social/robdot/planetary-nebula-death-star-end-photo_n_3587425_268779172.htmlHistory |Permalink |Share it photoliveinhope23My unauthorized autobiography664 Fans 6 hours ago ( 3:11 PM)Thank you for clearing that up for everyoneliveinhope23: Thank you for clearing that up for everyonehttp://www.huffingtonpost.com/social/liveinhope23/planetary-nebula-death-star-end-photo_n_3587425_268781685.htmlHistory |Permalink |Share itThis comment has been down-ranked into oblivion. View comment You have not right to carry out this operation or Error this operation. spinnerLoading comments…This comment has been down-ranked into oblivion. View comment You have not right to carry out this operation or Error this operation. spinnerLoading comments… palindrom972 Fans 5 hours ago ( 4:23 PM)It looks very much as if the galaxies and stars were "created" by the action of gravitation on ordinary and dark matter. The small initial density fluctuations that collapsed into galaxies were apparently left over from the inflationary era of the big bang. It's possible that we may never be able to establish what happened before that.palindrom: It looks very much as if the galaxies and starshttp://www.huffingtonpost.com/social/palindrom/planetary-nebula-death-star-end-photo_n_3587425_268802924.htmlHistory |Permalink |Share itThis comment has been down-ranked into oblivion. View comment You have not right to carry out this operation or Error this operation. spinnerLoading comments…This comment has been down-ranked into oblivion. View comment You have not right to carry out this operation or Error this operation. spinnerLoading comments… This user has chosen to opt out of the Badges program whosbinfarteen319 Fans 8 hours ago ( 1:57 PM)Our sun is roughly 4.57 billion years old. In about 6 billion years, our Sun’s core will run out of hydrogen and implode. However we all really know the earth is only 6,000 years old and started with Adam, Eve and a talking snake in a Garden someplace.whosbinfarteen: Our sun is roughly 4.57 billion years old. In abouthttp://www.huffingtonpost.com/social/whosbinfarteen/planetary-nebula-death-star-end-photo_n_3587425_268759681.htmlHistory |Permalink |Share it HUFFPOST SUPER USERdennissinnedProgressive but not a Democrat.622 Fans 7 hours ago ( 2:45 PM)Don't forget the dinosaurs. loldennissinned: Don't forget the dinosaurs. lolhttp://www.huffingtonpost.com/social/dennissinned/planetary-nebula-death-star-end-photo_n_3587425_268774188.htmlHistory |Permalink |Share it This user has chosen to opt out of the Badges program photoeddtrm148 Fans 4 hours ago ( 6:00 PM)And Sharks !! There is a place in New Brunswick, Canada where they found a shark fossil that is 418 million years old.eddtrm: And Sharks !! There is a place in New Brunswick,http://www.huffingtonpost.com/social/eddtrm/planetary-nebula-death-star-end-photo_n_3587425_268831613.htmlHistory |Permalink |Share itThis comment has been down-ranked into oblivion. View comment You have not right to carry out this operation or Error this operation. spinnerLoading comments…This comment has been down-ranked into oblivion. View comment You have not right to carry out this operation or Error this operation. spinnerLoading comments… photooneeasyriderE=mc2: From light you exist6391 Fans 7 hours ago ( 2:52 PM)You would be correct if our sun was much larger. Instead, our sun will begin to lose the battle with gravity and condense as it runs out of hydrogen. As the sun condenses pressure increases and temperature rises causing helium to fuse forming carbon, it's final composition as a hot carbon core, or white dwarf.

During helium fusion, because the sun burns hotter due to increased pressure at the core, gas at the sun's periphery expands diameter of the sun a million times during the red giant phase. Eventually, as the sun runs out of helium, outer layers of gas simply dissipate or blow away toward outer regions of the solar system, not in an explosive process, but more of a slow steady dissipation over millions of years.oneeasyrider: You would be correct if our sun was much larger.http://www.huffingtonpost.com/social/oneeasyrider/planetary-nebula-death-star-end-photo_n_3587425_268776147.htmlHistory |Permalink |Share itThis comment has been down-ranked into oblivion. View comment You have not right to carry out this operation or Error this operation. spinnerLoading comments…This comment has been down-ranked into oblivion. View comment You have not right to carry out this operation or Error this operation. spinnerLoading comments…    Page: 1 2 3 Next › Last » (3 total) new comment(s) on this entry — Click to refreshspinnerLoading comments… Follow HuffPost Email Facebook Twitter Google Plus RSS Mobile HuffPost Daily Brief Science Get top stories and blogs posts emailed to you each day.

HuffPost Science HuffPost Science HuffPost Science Most Popular on HuffPost Latest News Science View all RSS feeds  
Advertise | Make HuffPost your Home Page | RSS | Careers | FAQ User Agreement | Privacy | Comment Policy | About Us | About Our Ads | Contact Us Copyright © 2013 TheHuffingtonPost.com, Inc. | "The Huffington Post" is a registered trademark of TheHuffingtonPost.com, Inc. All rights reserved. Part of AOL Tech
HuffPost Lightbox

Aucun commentaire:

Enregistrer un commentaire