(Phys.org) —How powerful was February's meteor that crashed into Russia? Strong enough that its explosive entry into our atmosphere was detected almost 6,000 miles away in Lilburn, Ga., by infrasound sensors – a full ...
Earth Sciences
May 3, 2013
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(Phys.org) —A network of seismographic stations recorded spectacular signals from the blast waves of the meteor that landed near Chelyabinsk, Russia, as the waves crossed the United States.
Earth Sciences
Mar 5, 2013
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(Phys.org) -- Researchers from the University of Saskatchewan and the Geological Survey of Canada (GSC) have discovered a massive meteor impact from millions of years ago in Canada’s western Arctic.
Earth Sciences
Aug 8, 2012
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The latest Mars destination is a giant crater near the equator with an odd feature: a mountain rising from the crater floor.
Space Exploration
Aug 4, 2012
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The "super-eruption" of a major volcanic system occurs about every 100,000 years and is considered one of the most catastrophic natural events on Earth, yet scientists have long been unsure about what triggers these violent ...
Earth Sciences
Oct 12, 2011
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A team of scientists has discovered the youngest dinosaur preserved in the fossil record before the catastrophic meteor impact 65 million years ago. The finding indicates that dinosaurs did not go extinct prior to the impact ...
Archaeology
Jul 13, 2011
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(PhysOrg.com) -- When a meteor impacts a planet or a moon, it always stops at a relatively shallow depth, even when impacting at high speeds. Until now, researchers have assumed that all objects impacting a granular medium ...
This month, Comet Hartley 2 has put on a good show for backyard astronomers. The comet's vivid green atmosphere and auburn tail of dust look great through small telescopes, and NASA's Deep Impact/EPOXI probe is about to return ...
Space Exploration
Oct 27, 2010
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A new discovery of hydrothermally altered carbonate-bearing rocks on Mars points toward habitable environments deep in the martian crust, a Planetary Science Institute researcher said.
Space Exploration
Oct 14, 2010
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Shock-synthesized diamonds said to prove a catastrophic impact killed off North American megafauna can't be found.
Earth Sciences
Aug 30, 2010
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