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Latest Hubble Deep Field Stories

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2007-03-06 13:05:00

Several hundred images taken with NASA's Hubble Space Telescope have been woven together into a rich tapestry of at least 50,000 galaxies. The Hubble view is yielding new clues about the universe's youth, from its "pre-teen" years to young adulthood. The snowstorm of galaxies in the Hubble panorama does not appear evenly spread out. Some galaxies seem to be grouped together. Others are scattered through space. This uneven distribution of galaxies traces the concentration of dark matter, an...

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2006-09-21 14:15:32

Astronomers analyzing two of the deepest views of the cosmos made with NASA's Hubble Space Telescope have uncovered a gold mine of galaxies, more than 500 that existed less than a billion years after the Big Bang. These galaxies thrived when the cosmos was less than 7 percent of its present age of 13.7 billion years. This sample represents the most comprehensive compilation of galaxies in the early universe, researchers said. The discovery is scientifically invaluable for understanding the...

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2006-09-13 16:40:00

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. These observations of the earliest stages in the evolution of galaxies provide new evidence for the hierarchical theory of galaxy formation -- the idea that large galaxies built up over time as smaller galaxies collided and merged. Astronomers at the University of California, Santa Cruz, used NASA's Hubble Space Telescope to...

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2006-07-03 10:28:07

Rare Blob Unveiled: Evidence for Hydrogen Gas Falling onto a Dark Matter Clump? ESO's VLT has helped scientists to discover a large primordial 'blob', more than 10 billion light-years away. The most likely scenario to account for its existence and properties is that it represents the early stage in the formation of a galaxy, when gas falls onto a large clump of dark matter. Over the last few years, astronomers have discovered in the distant Universe a few so-called 'blobs'. These are rather...

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2006-01-10 10:34:32

NASA -- An analysis of the Hubble Space Telescope's deepest view of the universe offers compelling evidence that monster black holes in the centers of galaxies were not born big but grew over time through repeated galactic mergers. "By studying distant galaxies in the Hubble Ultra Deep Field (HUDF), we have the first statistical evidence that supermassive black-hole growth is linked to the process of galaxy assembly," said astronomer Rogier Windhorst, of Arizona State University in Tempe,...

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2005-12-06 18:01:17

More than half of the largest galaxies in the nearby universe have collided and merged with another galaxy in the past two billion years, according to a Yale astronomer in a study using hundreds of images from two of the deepest sky surveys ever conducted. The idea of large galaxies being assembled primarily by mergers rather than evolving by themselves in isolation has grown to dominate cosmological thinking. However, a troubling inconsistency within this general theory has been that the...

2005-09-27 12:51:54

By Deborah Zabarenko WASHINGTON (Reuters) - Astronomers using two of NASA's most powerful telescopes said on Tuesday they have detected a "big baby" galaxy, vastly heavy for its young age and its location in the early universe. The discovery was surprising, since astronomers have long theorized that galaxies form when stars gradually cluster together, with small galaxies preceding bigger galaxies. But the stars in this cosmic infant -- less than 1 billion years old -- have eight...

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2005-09-27 14:20:00

NASA -- Two of NASA's Great Observatories, the Spitzer and Hubble Space Telescopes, have teamed up to "weigh" the stars in several very distant galaxies. One of these galaxies, among the most distant ever seen, appears to be unusually massive and mature for its place in the young universe. This comes as a surprise to astronomers because the earliest galaxies in the universe are commonly thought to have been much smaller agglomerations of stars that gradually merged together to build large...

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2005-04-06 07:50:00

RAS -- UK and US astronomers have used the Spitzer Space Telescope and the Hubble Space Telescope to detect  light coming from some of the first stars to form in some of the most distant galaxies yet seen. Speaking today at the RAS National Astronomy Meeting in Birmingham, Dr. Andrew Bunker (University of Exeter) discussed new evidence that the formation of the first galaxies may have got underway earlier than previously thought. This observational work using infrared images from...

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2005-04-05 07:30:00

RAS -- A team of European scientists has used Virtual Observatories to compare observations of distant "starburst" galaxies made at radio and X-ray wavelengths. This is the first study to combine the highest resolution and sensitivity radio and X-ray images which penetrate the dust hiding the centres of some of these distant galaxies. The team focused on galaxies so far away that their radiation took more than six billion years to reach us. The galaxies are seen as they were when they were...