News tagged with years
Moon geology could solve three mysteries of early Earth
Space & Earth / Earth Sciences
Dec 08, 2008 |
4.1 / 5 (37) |
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(PhysOrg.com) -- Not much is known about the Earth before 4 billion years ago, the earliest period in the planet’s 4.5-billion-year history. Because Earth has lost almost all geological records of this era ...
Suzaku snaps first complete X-ray view of a galaxy cluster
May 28, 2009 |
4.4 / 5 (8) |
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The joint Japan-U.S. Suzaku mission is providing new insight into how assemblages of thousands of galaxies pull themselves together. For the first time, Suzaku has detected X-ray-emitting gas at a cluster's ...
Better Supernovae Measurements Aim To Improve Understanding of Dark Energy
May 22, 2009 |
4.6 / 5 (9) |
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(PhysOrg.com) -- A new technique for measuring the distances to supernovae more accurately than ever before has been developed by a team of scientists from Yale University, Lawrence Berkeley National Laboratory ...
Mysterious space blob discovered at cosmic dawn (w/Video)
Apr 22, 2009 |
4.9 / 5 (25) |
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(PhysOrg.com) -- A team of astronomers, led by Carnegie's Masami Ouchi, have discovered a mysterious, giant object that existed when the universe was only 800 million years old. Dubbed an extended "Lyman-Alpha ...
Astronomers find most crowded collision of galaxy clusters
Apr 16, 2009 |
4.7 / 5 (24) |
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The most crowded collision of galaxy clusters has been identified by combining information from three different telescopes. This result gives scientists a chance to learn what happens when some of the largest ...
Decline of carbon-dioxide-gobbling plankton coincided with ancient global cooling
Biology /
Jan 08, 2009 |
4.6 / 5 (12) |
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(PhysOrg.com) -- The evolutionary history of diatoms -- abundant oceanic plankton that remove billions of tons of carbon dioxide from the air each year -- needs to be rewritten, according to a new Cornell ...
Scientists say comet killed off mammoths, saber-toothed tigers
Space & Earth / Earth Sciences
Jan 02, 2009 |
4.5 / 5 (24) |
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First an explosion as powerful as thousands of megatons of TNT rained meteorites down on North America. Then forest fires broke out across the continent, sending up a thick layer of soot and dust that blocked ...
Life got bigger in two, million-fold leaps, scientists say
Space & Earth / Earth Sciences
Dec 22, 2008 |
4.6 / 5 (13) |
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(PhysOrg.com) -- Extremes are exciting. Does anyone really think dinosaurs would capture our imagination the way they do if they hadn't been so huge? You don't see natural history museums vying for fossil skeletons ...
Reconnaissance Orbiter Reveals Details of a Wetter Mars
Space & Earth / Space Exploration
Oct 28, 2008 |
4.3 / 5 (39) |
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(PhysOrg.com) -- NASA's Mars Reconnaissance Orbiter has observed a new category of minerals spread across large regions of Mars. This discovery suggests that liquid water remained on the planet's surface a ...
Rapid star formation spotted in 'stellar nurseries' of infant galaxies
Nov 11, 2009 |
4 / 5 (5) |
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The Universe's infant galaxies enjoyed rapid growth spurts forming stars like our sun at a rate of up to 50 stars a year, according to scientists at Durham University.
Sea level stargazing: Astronomers make key sighting with Florida telescope
Sep 28, 2009 |
4 / 5 (9) |
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(PhysOrg.com) -- This summer, University of Florida astronomers inaugurated the world's largest optical telescope on a nearly 8,000-foot mountaintop 3,480 miles away. But it was a far more modest observatory, located just ...
Research Team Discover New Tidal Debris from Colliding Galaxies
Jun 09, 2009 |
4.6 / 5 (12) |
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Astronomers have discovered new tidal debris stripped away from colliding galaxies. The research will be being presented during a press conference at the 214th annual American Astronomical Society meeting ...
Three times farther away in outer space than previously possible -- a new way to measure cosmic distances
Jun 08, 2009 |
4.9 / 5 (20) |
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Ohio State University researchers have found a way to measure distances to objects three times farther away in outer space than previously possible, by extending a common measurement technique.
Planet-Hunting Method Succeeds at Last
May 28, 2009 |
4.8 / 5 (12) |
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(PhysOrg.com) -- A long-proposed tool for hunting planets has netted its first catch -- a Jupiter-like planet orbiting one of the smallest stars known.
Scientists solve mystery of starlight's origins
Apr 08, 2009 |
4.5 / 5 (10) |
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(PhysOrg.com) -- Scientists from the University of Toronto and the University of British Columbia have helped unveil the birthplaces of ancient stars using a two-tonne telescope carried by a balloon the size ...
