Youthful Galaxies Surprise Astronomers
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Astronomers have spotted three dozen bright, young galaxies that defy the general aging trends of the universe. The galaxies, fairly nearby and massive, are more youthful than they ought to be, based on current theory.
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The earliest stars may hold clues to the nature of the Universe's mysterious dark matter, simulations suggest.
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Nasa's Spitzer telescope shows bulky black holes lurk where they are least expected - in skinny galaxies.
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US scientists working with images from the Hubble Space Telescope have identified what may turn out to be some of the earliest star-forming galaxies.
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Two independent teams of astronomers are reporting that they might be zeroing in on the time that bright galaxies began to light up the primordial universe.
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Recent observations have uncovered evidence that helps to confirm the identification of the remains of one of the earliest stellar explosions recorded by humans. The new study shows that the supernova remnant RCW 86 is much younger than previously thought.
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An optical illusion has caused astronomers to overestimate the size of a class of giant stars by a factor of two, according to new observations.
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A systematic search for the first bright galaxies to form in the early universe has revealed a dramatic jump in the number of such galaxies around 13 billion years ago.
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Astronomers have produced the first truly useful image ever of something in space using gamma rays. It's a picture only an astronomer could love, but it appears to help solve a century-long mystery.
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Astronomers using a giant telescope say  they have found glimpses of the most distant -- and oldest --  galaxies ever seen, a finding that will help provide clues to  the origins of the universe.
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The surface of one of the brightest stars in the night sky is imaged by scientists.
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Astronomers have estimated the age of our galaxy at about 13,600 million years old.
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An international team of astronomers have unexpectedly found hundreds of expanding "supermassive" black holes buried deep inside galaxies billions of light years from Earth.
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Astronomers find a strange new world that has them pondering again the essential properties of a planet.
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Scientists said on Wednesday that   they have found the most distant galaxy yet, nearly 13 billion   light-years away, in a discovery that could help explain how   stars were formed at the dawn of time.
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Hubble Space Telescope -- Hubble Space Telescope -- Detailed analyses of mankind's deepest optical view of the universe, the Hubble Ultra Deep Field (HUDF), by several expert teams have at last identified what may turn out to be some of the earliest star-forming galaxies.     Astronomers are now debating whether the hottest stars in these early galaxies may have provided enough radiation to "lift a curtain" of cold, primordial hydrogen that cooled after the big bang...
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Astronomers have found what they believe to be several of the earliest star-forming galaxies, in a detailed analysis of Hubble Space Telescope images released earlier this year.