News Release Archive: Star

2009

• 1/7/2009 STScI-2009-03 1. Hubble Finds Stars That 'Go Ballistic' Resembling comets streaking across the sky, these four speedy stars are plowing through regions of dense interstellar gas and creating brilliant arrowhead structures and trailing... (More)
• 1/6/2009 STScI-2009-04 2. Star Light, Star Bright, Its Explanation is Out of Sight This pair of NASA Hubble Space Telescope pictures shows the appearance of a mysterious burst of light that was detected on February 21, 2006, brightened... (More)
• 1/5/2009 STScI-2009-01 3. Brown Dwarfs Don't Hang Out With Stars Brown dwarfs, objects that are less massive than stars but larger than planets, just got more elusive, based on studies of nearby multiple-star systems... (More)

2008

• 12/9/2008 STScI-2008-41 4. Hubble Finds Carbon Dioxide on an Extrasolar Planet NASA's Hubble Space Telescope has discovered carbon dioxide in the atmosphere of a planet orbiting another star. This is an important step along the trail of finding... (More)
• 11/13/2008 STScI-2008-39 5. Hubble Directly Observes Planet Orbiting Fomalhaut Astronomers using NASA's Hubble Space Telescope have taken the first visible-light snapshot of a planet orbiting another star. The images show the planet, named Fomalhaut... (More)
• 7/1/2008 STScI-2008-22 6. Hubble Sees Stars and a Stripe in Celestial Fireworks A delicate ribbon of gas floats eerily in our galaxy. A contrail from an alien spaceship? A jet from a black-hole? Actually... (More)
• 3/19/2008 STScI-2008-11 7. Hubble Finds First Organic Molecule on an Exoplanet NASA's Hubble Space Telescope has made the first detection ever of an organic molecule in the atmosphere of a Jupiter-sized planet orbiting another star. This breakthrough... (More)
• 1/10/2008 STScI-2008-01 8. Circumstellar Dust Takes Flight in 'The Moth' What superficially resembles a giant moth floating in space is giving astronomers new insight into the formation and evolution of planetary systems. This is not your typical... (More)

2007

• 12/11/2007 STScI-2007-44 9. Hubble Finds that Extrasolar Planet Has a Hazy Sunset A team of astronomers, led by Frederic Pont from the Geneva University Observatory in Switzerland, has detected for the first time strong evidence... (More)
• 12/4/2007 STScI-2007-42 10. How White Dwarfs Get Their 'Kicks' NASA's Hubble Space Telescope is providing strong evidence that white dwarfs, the burned-out relics of stars, are given a "kick" when they form. The sharp vision of Hubble's Advanced... (More)
• 7/19/2007 STScI-2007-28 11. Astronomers Find Highly Elliptical Disk Around Young Star Dust and debris parade in an extremely misshapen ring around the young star, HD 15115. The disk, seen edge-on with NASA's Hubble Space Telescope... (More)
• 2/22/2007 STScI-2007-10 12. NASA's Hubble Telescope Celebrates SN 1987A's 20th Anniversary Twenty years ago, astronomers witnessed one of the brightest stellar explosions in more than 400 years. The titanic supernova... (More)
• 1/31/2007 STScI-2007-07 13. Hubble Probes Layer-cake Structure of Alien World's Atmosphere The powerful vision of NASA's Hubble Space Telescope has allowed astronomers to study for the first time the layer-cake structure of the atmosphere of a planet orbiting... (More)
• 1/8/2007 STScI-2007-03 14. Astronomers Map a Hypergiant Star's Massive Outbursts Using NASA's Hubble Space Telescope and the W.M. Keck Observatory, Kameula, Hawaii, astronomers have learned that the gaseous outflow from one of the brightest super-sized... (More)
• 1/7/2007 STScI-2007-02 15. Hubble Observations Provide Insight into Planet Birth Hubble observed a "blizzard" of particles in a disk around a young star revealing the process by which planets grow from tiny dust grains. The particles... (More)

2006

• 12/11/2006 STScI-2006-54 16. Heavyweight Stars Light Up Nebula NGC 6357 The small open star cluster Pismis 24 lies in the core of the large emission nebula NGC 6357 in Scorpius, about 8,000 light-years away from Earth. Some of the stars in this cluster... (More)
• 11/16/2006 STScI-2006-52 17. Hubble Finds Evidence for Dark Energy in the Young Universe Scientists using NASA's Hubble Space Telescope have discovered that dark energy is not a new constituent of space, but rather has been present... (More)
• 10/26/2006 STScI-2006-50 18. Hubble's Latest Views of Light Echo from Star V838 Monocerotis These are the most recent NASA Hubble Space Telescope views of an unusual phenomenon in space called a light echo. Light from a star that erupted... (More)
• 10/9/2006 STScI-2006-32 19. Hubble Observations Confirm that Planets Form from Disks Around Stars NASA's Hubble Space Telescope, in collaboration with ground-based observations, has provided definitive evidence for the existence of the nearest extrasolar... (More)
• 10/4/2006 STScI-2006-34 20. Hubble Finds Extrasolar Planets Far Across Galaxy NASA's Hubble Space Telescope has discovered 16 extrasolar planet candidates orbiting a variety of distant stars in the central region of our Milky Way galaxy. (More)
• 9/7/2006 STScI-2006-31 21. Planet Or Failed Star? NASA's Hubble Telescope Photographs One of Smallest Stellar Companions Ever Seen Astronomers using NASA's Hubble Space Telescope have photographed one of the smallest objects... (More)
• 8/17/2006 STScI-2006-37 22. Hubble Sees Faintest Stars in a Globular Cluster NASA's Hubble Space Telescope has uncovered what astronomers are reporting as the dimmest stars ever seen in any globular star cluster. Globular clusters are spherical... (More)
• 8/8/2006 STScI-2006-38 23. Hubble Identifies Stellar Companion to Distant Planet NASA's Hubble Space Telescope has for the first time identified the parent star of a distant planet (system name OGLE-2003-BLG-235L/MOA-2003-BLG-53L) discovered... (More)
• 6/27/2006 STScI-2006-25 24. Hubble Reveals Two Dust Disks Around Nearby Star Beta Pictoris Detailed images of the nearby star Beta Pictoris, taken by NASA's Hubble Space Telescope, confirm the existence of not one but two dust disks encircling... (More)
• 5/18/2006 STScI-2006-22 25. Astronomers Use Innovative Technique to Find Extrasolar Planet An international team of professional and amateur astronomers, using simple off-the-shelf equipment to trawl the skies for planets outside our solar system... (More)
• 3/15/2006 STScI-2006-11 26. Astronomers Measure Precise Mass of a Binary Brown Dwarf This is an artist's concept of a pair of eclipsing brown dwarfs. Brown dwarfs are mysterious celestial objects that fall somewhere between the smallest... (More)
• 2/7/2006 STScI-2006-07 27. Hubble Snaps Images of a Pinwheel-Shaped Galaxy This dramatic spiral galaxy is one of the latest viewed by NASA's Hubble Space Telescope. Stunning details of the face-on spiral galaxy, cataloged as NGC 1309, are captured... (More)
• 1/25/2006 STScI-2006-06 28. Astronomers Find Smallest Extrasolar Planet Yet Around Normal Star Using an armada of telescopes, an international team of astronomers has found the smallest planet ever detected around a normal star outside our solar system. (More)
• 1/19/2006 STScI-2006-05 29. Dusty Planetary Disks Around Two Nearby Stars Resemble Our Kuiper Belt These two bright debris disks of ice and dust appear to be the equivalent of our own solar system's Kuiper Belt, a ring of icy rocks outside... (More)
• 1/9/2006 STScI-2006-03 30. Mystery Solved: High-Energy Fireworks Linked to Massive Star Cluster Call it the Bermuda Triangle of our Milky Way Galaxy: a tiny patch of sky that has been known for years to be the source of the mysterious... (More)
• 1/9/2006 STScI-2006-02 31. There's More to the North Star Than Meets the Eye By stretching the capabilities of NASA's Hubble Space Telescope to the limit, astronomers have photographed the close companion of Polaris... (More)

2005

• 12/13/2005 STScI-2005-36 32. Astronomers Use Hubble to 'Weigh' Dog Star's Companion For astronomers, it's always been a source of frustration that the nearest white-dwarf star is buried in the glow of the brightest star in the nighttime sky. (More)
• 12/1/2005 STScI-2005-37 33. A Giant Hubble Mosaic of the Crab Nebula The Crab Nebula is a six-light-year-wide expanding remnant of a star's supernova explosion. Japanese and Chinese astronomers recorded this violent... (More)
• 11/30/2005 STScI-2005-31 34. Planet-Sized Brown Dwarf May Yield Smallest Known Solar System Astronomers using NASA's Spitzer and Hubble Space Telescopes and other ground-based observatories have discovered a failed star, less than one-hundredth... (More)
• 10/4/2005 STScI-2005-30 35. NASA Space Observatories Glimpse Faint Afterglow of Nearby Stellar Explosion Intricate wisps of glowing gas float amid a myriad of stars in this image of the supernova remnant, N132D. The ejected material shows that roughly... (More)
• 7/28/2005 STScI-2005-21 36. Hubble Pinpoints Doomed Star that Explodes as Supernova Amidst the glitter of billions of stars in the majestic spiral galaxy called the Whirlpool (M51), a massive star abruptly ends its life in a brilliant flash of light. (More)
• 6/22/2005 STScI-2005-10 37. Elusive Planet Reshapes a Ring Around Neighboring Star The top view, taken by NASA's Hubble Space Telescope is the most detailed visible-light image ever taken of a narrow, dusty ring around the nearby star Fomalhaut... (More)
• 2/3/2005 STScI-2005-02 38. Light Continues to Echo Three Years After Stellar Outburst The Hubble Space Telescope's latest image of the star V838 Monocerotis (V838 Mon) reveals dramatic changes in the illumination of surrounding dusty cloud structures. (More)
• 1/10/2005 STScI-2005-03 39. Hubble's Infrared Eyes Home in on Suspected Extrasolar Planet The Hubble Space Telescope's near-infrared vision is hot on the trail of a possible planetary companion to a relatively bright young brown dwarf located... (More)

2004

• 12/9/2004 STScI-2004-33 40. Spitzer and Hubble Capture Evolving Planetary Systems Two of NASA's Great Observatories, the Spitzer Space Telescope and the Hubble Space Telescope, have provided astronomers an unprecedented look at dusty planetary... (More)
• 10/27/2004 STScI-2004-34 41. Stellar Survivor from 1572 A.D. Explosion Supports Supernova Theory An international team of astronomers is announcing today that they have identified the probable surviving companion star to a titanic supernova explosion witnessed... (More)
• 10/6/2004 STScI-2004-29 42. NASA's Great Observatories May Unravel 400-Year Old Supernova Mystery Four hundred years ago, sky watchers, including the famous astronomer Johannes Kepler, were startled by the sudden appearance of a "new star" in the western... (More)
• 9/2/2004 STScI-2004-23 43. A Bright Supernova in the Nearby Galaxy NGC 2403 The explosion of a massive star blazes with the light of 200 million Suns in this NASA Hubble Space Telescope image. The arrow at top right points to the stellar... (More)
• 7/15/2004 STScI-2004-24 44. Astronomers Measure Mass of a Single Star — First Since the Sun Astronomers have directly measured the mass of a single star — the first time such a feat has been accomplished for any solitary... (More)
• 6/15/2004 STScI-2004-51 45. Ultra-cool Diminutive Star Weighs In The power of the some of the world's biggest telescopes has been brought to bear to directly measure the mass, for the first time, of one of the smallest stars ever seen in the universe. (More)
• 4/8/2004 STScI-2004-13 46. Hubble Sees Stars as Numerous as Grains of Sand in Nearby Galaxy What appear as individual grains of sand on a beach in the image obtained with NASA's Hubble Space Telescope are actually myriads... (More)
• 3/4/2004 STScI-2004-10 47. Space Phenomenon Imitates Art in Universe's Version of van Gogh Painting This image resembling Vincent van Gogh's painting, "Starry Night," is Hubble's latest view of an expanding halo of light around a distant... (More)
• 2/20/2004 STScI-2004-12 48. New Clues About the Nature of Dark Energy: Einstein May Have Been Right After All The good news from NASA's Hubble Space Telescope is that Einstein was right — maybe. A strange... (More)
• 2/19/2004 STScI-2004-09 49. Supernova Shock Wave Is Producing a Spectacular New Light Show Seventeen years ago, astronomers spotted the brightest stellar explosion ever seen since the one observed by Johannes Kepler 400 years ago. (More)
• 2/2/2004 STScI-2004-44 50. Oxygen and Carbon Found in Atmosphere of an Extrasolar Planet NASA's Hubble Space Telescope has detected, for the first time ever, the presence of oxygen and carbon in the atmosphere of a planet outside... (More)
• 1/27/2004 STScI-2004-43 51. Massive Old Star Reveals Secrets on Deathbed Like a doctor trying to understand an elderly patient's sudden demise, astronomers have obtained the most detailed observations ever of an old, but otherwise normal massive... (More)
• 1/7/2004 STScI-2004-41 52. Supernova Survivor: First Supernova Companion Star Found An international team of astronomers has, for the first time, observed a stellar "survivor" to emerge from a double star system involving an exploded supernova. (More)

2003

• 9/4/2003 STScI-2003-24 53. Celestial Composition Amid a backdrop of far-off galaxies, the majestic dusty spiral NGC 3370 looms in the foreground in this NASA Hubble Space Telescope image. Recent observations taken with the Advanced... (More)
• 8/7/2003 STScI-2003-21 54. Too Close for Comfort This Hubble Space Telescope view of the core of one of the nearest globular star clusters, called NGC 6397, resembles a treasure chest of glittering jewels. The cluster is located 8,200 light-years... (More)
• 7/10/2003 STScI-2003-19 55. Oldest Known Planet Identified NASA's Hubble Space Telescope precisely measured the mass of the oldest known planet in our Milky Way galaxy. At an estimated age of 13 billion years, the... (More)
• 4/10/2003 STScI-2003-12 56. Far-Flung Supernovae Shed Light on Dark Universe New Hubble Space Telescope observations of a pair of very distant exploding stars, called Type Ia supernovae, provide new clues about the accelerating universe and its mysterious... (More)
• 3/26/2003 STScI-2003-10 57. Hubble Watches Light from Mysterious Erupting Star Reverberate Through Space In January 2002, a dull star in an obscure constellation suddenly became 600,000 times more luminous than our Sun, temporarily making it the brightest... (More)
• 3/12/2003 STScI-2003-08 58. Too Close for Comfort: Hubble Discovers an Evaporating Planet Astronomers using NASA's Hubble Space Telescope have observed for the first time the atmosphere of a planet beyond our solar system evaporating into space. (More)
• 1/6/2003 STScI-2003-02 59. Hubble Reveals Complex Circumstellar Disk NASA Hubble Space Telescope's new Advanced Camera for Surveys (ACS) has given astronomers their clearest view yet of the dust disk around a young, 5-million-year-old star. (More)

2002

• 12/3/2002 STScI-2002-27 60. Hubble Makes Precise Measure of Extrasolar World's True Mass An international team of astronomers used the Hubble Space Telescope to help make a precise measurement of the mass of a planet outside our solar system. (More)
• 9/19/2002 STScI-2002-24 61. Space Movie Reveals Shocking Secrets of the Crab Pulsar Just when it seemed like the summer movie season had ended, two of NASA's Great Observatories have produced their own action movie. Multiple observations... (More)
• 7/3/2002 STScI-2002-15 62. Colorful Fireworks Finale Caps a Star's Life Glowing gaseous streamers of red, white, and blue — as well as green and pink — illuminate the heavens like Fourth of July fireworks. The colorful streamers... (More)
• 4/24/2002 STScI-2002-10 63. Hubble Uncovers Oldest "Clocks" in Space to Read Age of Universe Pushing the limits of its powerful vision, NASA's Hubble Space Telescope has uncovered the oldest burned-out stars in our Milky Way Galaxy. (More)

2001

• 11/27/2001 STScI-2001-38 64. Hubble Makes First Direct Measurements of Atmosphere on World Around another Star Astronomers using the Hubble Space Telescope have made the first direct detection of the atmosphere of a planet orbiting a star outside... (More)
• 10/4/2001 STScI-2001-33 65. Peering into the Core of a Globular Cluster Astronomers have used NASA's Hubble Space Telescope to peer into the center of a dense swarm of stars called Omega Centauri. Located some 17,000 light-years... (More)
• 7/12/2001 STScI-2001-19 66. Magnetic Fields Weave Rings Around Stars There are stars with planets. Stars with companion stars. Stars with pancake-shaped disks of rocky debris. But how about young, hot, hefty stars embedded in large inner tube-shaped... (More)
• 4/2/2001 STScI-2001-09 67. Blast from the Past: Farthest Supernova Ever Seen Sheds Light on Dark Universe Gazing to the far reaches of space and time, NASA's Hubble Space Telescope identified the farthest stellar explosion... (More)

2000

• 11/9/2000 STScI-2000-35 68. Hubble Sees Bare Neutron Star Streaking Across Space It's as big as Manhattan Island, is 10 trillion times denser than steel, and is hurtling our way at speeds over 100 times faster than a supersonic jet. An alien spaceship?... (More)
• 9/21/2000 STScI-2000-32 69. Movies from Hubble Show the Changing Faces of Infant Stars Time-lapse movies made from a series of pictures taken by NASA's Hubble Space Telescope are showing astronomers that young stars and their surroundings... (More)
• 8/31/2000 STScI-2000-24 70. He 2-90's Appearance Deceives Astronomers Astronomers using NASA's Hubble Space Telescope have stumbled upon a mysterious object that is grudgingly yielding clues to its identity. A quick glance at the Hubble picture... (More)
• 8/24/2000 STScI-2000-29 71. Hubble Takes Census of Elusive Brown Dwarf Stars Astronomers using NASA's Hubble Space Telescope have carried out the most complete inventory to date of brown dwarfs, one of the universe's most elusive... (More)
• 7/13/2000 STScI-2000-23 72. Hubble Watches Star Tear Apart its Neighborhood The Hubble telescope has snapped a view of a stellar demolition zone in our Milky Way Galaxy: a massive star, nearing the end of its life, tearing apart the shell of surrounding... (More)
• 6/1/2000 STScI-2000-15 73. Peering into the Heart of the Crab Nebula In the year 1054 A.D., Chinese astronomers were startled by the appearance of a new star, so bright that it was visible in broad daylight for several weeks. (More)
• 4/6/2000 STScI-2000-13 74. Suspected Protoplanet May Really Be a Distant Star Follow-up observations of an unusual object initially suspected to be the first directly detected planet outside our solar... (More)
• 3/16/2000 STScI-2000-05 75. Hubble Finds Young Stars in Cosmic Dance This composite image, made with two cameras aboard NASA's Hubble Space Telescope, shows a pair of 12 light-year-long jets of gas blasted... (More)
• 2/16/2000 STScI-2000-11 76. Onset of Titanic Collision Lights Up Supernova Ring NASA's Hubble Space Telescope is giving astronomers a ringside seat to a never before seen violent celestial "main attraction" unfolding in a galaxy 169,000 light-years... (More)
• 1/15/2000 STScI-2000-02 77. Beta Pictoris Disk Hides Giant Elliptical Ring System The planetary dust disk around the nearby star Beta Pictoris is dynamically "ringing like a bell," say astronomers investigating Hubble telescope images. The "clapper"... (More)
• 1/13/2000 STScI-2000-04 78. An Expanding Bubble in Space A star 40 times more massive than the Sun is blowing a giant bubble of material into space. In this colorful picture, the Hubble telescope has captured a glimpse of the expanding bubble... (More)

1999

• 12/2/1999 STScI-1999-44 79. Hubble Telescope Reveals Swarm of Glittering Stars in Nearby Galaxy Peering at a small area within the Large Magellanic Cloud (LMC), the Hubble telescope has provided the deepest color picture ever obtained in this satellite... (More)
• 10/7/1999 STScI-1999-35 80. Hubble Heritage Project's First Anniversary To mark the first anniversary of the Hubble Heritage Project, we present four Hubble telescope images of nebulae surrounding stars in our own Milky Way Galaxy. ... (More)
• 9/29/1999 STScI-1999-33 81. Hubble Captures a Grand View of the Birth of "Hefty" Stars Pictures taken in infrared and visible light by the Hubble telescope recount a vivid story of the turbulent birthing process of massive stars. (More)
• 8/12/1999 STScI-1999-24 82. Bloated Stars Swallow Giant Planets The phrase "big fish eat little fish" may hold true when it comes to planets and stars. Perhaps as many as 100 million of the Sun-like stars in our galaxy harbor close-orbiting... (More)
• 6/10/1999 STScI-1999-23 83. A Butterfly-Shaped "Papillon" Nebula Yields Secrets of Massive Star Birth Here is a Hubble telescope view of a turbulent cauldron of star birth called N159, which is taking place 170,000 light-years away in our satellite galaxy... (More)
• 6/2/1999 STScI-1999-21 84. Hubble Picture Adds to Planet-Making Recipe The Hubble telescope has snapped a nearly face-on view of a swirling disk of dust and gas surrounding a developing star called AB Aurigae. The image, taken in visible... (More)
• 6/1/1999 STScI-1999-20 85. Hubble Snapshot Captures Life Cycle of Stars In this stunning picture of the giant galactic nebula NGC 3603, the Hubble telescope's crisp resolution captures various stages... (More)
• 5/25/1999 STScI-1999-19 86. Hubble Completes Eight-Year Effort to Measure Expanding Universe The Hubble Space Telescope Key Project team today announced that it has completed efforts to measure precise distances to far-flung galaxies, an essential ingredient... (More)
• 3/4/1999 STScI-1999-08 87. A Mote in Hubble's Eye The Hubble telescope image is a typical Milky Way star field in the constellation Centaurus. Such snapshots can be used to study the evolution of stars that make up our galaxy. (More)
• 2/9/1999 STScI-1999-05 88. Vast Stellar Disks Set Stage for Planet Birth in New Hubble Images Dramatic pictures of eerie disks of dust encircling young stars are giving astronomers a new look at what may be the early formative... (More)
• 2/4/1999 STScI-1999-04 89. SN1987A in the Large Magellanic Cloud Glittering stars and wisps of gas create a breathtaking backdrop for the self-destruction of a massive star, called supernova 1987A, in the Large Magellanic... (More)
• 1/8/1999 STScI-1999-03 90. Hubble Views of Dust Disks and Rings Surrounding Young Stars Yield Clues NASA's Hubble Space Telescope has given astronomers their first views of a dust ring around the star HR 4796A and a dark gap dividing... (More)

1998

• 11/5/1998 STScI-1998-38 91. Great Balls of Fire! Hubble Sees Bright Knots Ejected From Brilliant Star Resembling an aerial fireworks explosion, this dramatic Hubble telescope picture of the energetic star WR124 reveals that it is surrounded... (More)
• 10/21/1998 STScI-1998-28 92. Astronomers Unveil Colorful Hubble Photo Gallery A vibrant celestial photo album of some of NASA Hubble Space Telescope's most stunning views of the universe is being unveiled today on the Internet. Called the Hubble Heritage... (More)
• 5/28/1998 STScI-1998-19 93. Hubble Takes First Image of a Possible Planet around Another Star and Finds a Runaway World The Hubble telescope has given astronomers their first direct look at what is possibly a planet outside... (More)
• 2/10/1998 STScI-1998-08 94. Shock Wave Sheds New Light on Fading Supernova The Hubble telescope is giving astronomers a ringside seat to a never-before-seen titanic collision of an onrushing stellar shock wave with an eerie glowing... (More)
• 1/9/1998 STScI-1998-07 95. A New Class of X-ray Star? Teaming up space telescopes to make simultaneous ultraviolet and X-ray observations, astronomers may have solved a 20-year-old mystery and possibly discovered... (More)
• 1/8/1998 STScI-1998-02 96. Hubble Pinpoints Distant Supernovae Peering halfway across the universe to analyze light from exploded stars that died long before our Sun even existed, the Hubble telescope has allowed astronomers to determine that the expansion... (More)
• 1/7/1998 STScI-1998-03 97. Astronomers Have Found a New Twist in a Suspected Proto-Planetary Disk A telltale new warp uncovered in a vast, thin disk of dust encircling the star Beta Pictoris may be caused by the gravitational tug of a bypassing... (More)

1997

• 12/4/1997 STScI-1997-39 98. One Star's Loss is Another's Gain: Hubble Captures Brief Moment in Life of Lively Duo Some stars in double-star systems have found a quick way to lose weight by dumping... (More)
• 10/29/1997 STScI-1997-35 99. Hubble Catches Up with a Blue Straggler Star Astronomers have long been mystified by observations of a few hot, bright, apparently young stars residing in well-established communities where most of their neighbors... (More)
• 10/8/1997 STScI-1997-33 100. Hubble Identifies What May Be the Most Luminous Star Known Astronomers using the Hubble telescope have identified what may be the most luminous star known ? a celestial mammoth that releases up to 10 million... (More)