News tagged with cosmic impact
Study supports theory of extraterrestrial impact
A 16-member international team of researchers that includes James Kennett, professor of earth science at UC Santa Barbara, has identified a nearly 13,000-year-old layer of thin, dark sediment buried in the ...
Space & Earth / Earth Sciences
Mar 05, 2012 |
4.7 / 5 (23) |
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Killer algae a key player in mass extinctions
Algae, not asteroids, were the key to the end of the dinosaurs, say two Clemson University researchers. Geologist James W. Castle and ecotoxicologist John H. Rodgers have published findings that toxin producing ...
Space & Earth / Earth Sciences
Oct 19, 2009 |
4.4 / 5 (17) |
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Search results for cosmic impact
Did ancient Mars have a runaway greenhouse?
Cosmic impacts that once bombed Mars might have sent temperatures skyrocketing upward on the Red Planet in ancient times, enough to set warming of the surface on a runaway course, researchers say.
Space & Earth / Space Exploration
May 24, 2012 |
3 / 5 (4) |
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A new look at Apollo samples supports ancient impact theory
New investigations of lunar samples collected during the Apollo missions have revealed origins from beyond the Earth-Moon system, supporting a hypothesis of ancient cataclysmic bombardment for both worlds.
Space & Earth / Space Exploration
May 24, 2012 |
5 / 5 (3) |
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Did exploding stars help life on Earth to thrive?
(Phys.org) -- Research by a Danish physicist suggests that the explosion of massive stars – supernovae – near the Solar System has strongly influenced the development of life. Prof. Henrik Svensmark ...
Apr 24, 2012 |
4.3 / 5 (6) |
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Martian meteorite touches down at the University of Glasgow
(Phys.org) -- After hundreds of thousands of years drifting in space, a piece of the rocky surface of Mars has made its way into the hands of scientists at the University of Glasgow.
Space & Earth / Space Exploration
Apr 24, 2012 |
5 / 5 (2) |
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When stellar metallicity sparks planet formation
New research predicts the criteria needed for Earth-like planets to form around a star that have one-tenth the metallicity of our Sun. If researchers find small, rocky planets orbiting stars with lower metallicity, ...
Apr 10, 2012 |
5 / 5 (1) |
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Laboratory astrophysics
(PhysOrg.com) -- The term "laboratory astrophysics" might sound like an oxymoron; after all, how can equipment in a small room possibly simulate cosmic effects seen in the vastness of space. But in fact, much ...
Apr 02, 2012 |
5 / 5 (1) |
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Solar 'climate change' could cause rougher space weather
(PhysOrg.com) -- Recent research shows that the space age has coincided with a period of unusually high solar activity, called a grand maximum. Isotopes in ice sheets and tree rings tell us that this grand ...
Space & Earth / Space Exploration
Apr 02, 2012 |
4.4 / 5 (9) |
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Cosmic rays alter chemistry of lunar ice
Space scientists from the University of New Hampshire and multi-institutional colleagues report they have quantified levels of radiation on the moon's surface from galactic cosmic ray (GCR) bombardment that ...
Space & Earth / Space Exploration
Mar 19, 2012 |
4.9 / 5 (8) |
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Future NASA mission to sun 'a life's dream' for some
The chest-high rack of electronics Justin Kasper is assembling in a Massachusetts office park will fit in a shoe box before he's done.
Space & Earth / Space Exploration
Mar 16, 2012 |
4.5 / 5 (24) |
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High planetary tilt lowers odds for life?
Highly-tilted worlds would have extreme seasons, subjecting life to alternating periods of scorching and subzero temperatures. This could make the development of all but hardiest, simplest creatures a long ...
Space & Earth / Space Exploration
Feb 06, 2012 |
4.6 / 5 (13) |
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List of search results for cosmic impact
