News tagged with tunguska bolide
Near miss, but no threat: Asteroid in close pass was smaller than thought, astronomer shows
Space & Earth / Space Exploration
Mar 17, 2009 |
4.5 / 5 (8) |
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(PhysOrg.com) -- On March 2, an asteroid whizzed past the Earth at a distance of just 41,000 miles -- a near miss by cosmic standards (most communications satellites orbit at a distance of about 22,300 miles from Earth). ...
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Giant impact near India -- not Mexico -- may have doomed dinosaurs
Space & Earth / Earth Sciences
Oct 15, 2009 |
4.8 / 5 (42) |
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A mysterious basin off the coast of India could be the largest, multi-ringed impact crater the world has ever seen. And if a new study is right, it may have been responsible for killing the dinosaurs off 65 ...
Hubble captures rare Jupiter collision
Jul 25, 2009 |
5 / 5 (6) |
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For the past several days the world's largest telescopes have been trained on Jupiter. Not to miss the potentially new science in the unfolding drama 580 million kilometres away, Matt Mountain, director of ...
Space shuttle science shows how 1908 Tunguska explosion was caused by a comet
Space & Earth / Earth Sciences
Jun 24, 2009 |
3.4 / 5 (19) |
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The mysterious 1908 Tunguska explosion that leveled 830 square miles of Siberian forest was almost certainly caused by a comet entering the Earth's atmosphere, says new Cornell University research. The conclusion ...
Space rock gives Earth a close shave
Space & Earth / Space Exploration
Mar 03, 2009 |
4.4 / 5 (16) |
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An asteroid of a similar size to a rock that exploded above Siberia in 1908 with the force of a thousand atomic bombs whizzed close past Earth on Monday, astronomers said on Tuesday.
How a cometary boulder lit up the Spanish sky
Space & Earth / Space Exploration
Feb 13, 2009 |
4.8 / 5 (4) |
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(PhysOrg.com) -- Last July, people in Spain, Portugal and France watched the brilliant fireball produced by a boulder crashing down through the Earth’s atmosphere. In a paper to be published in the journal ...
Tunguska catastrophe: Evidence of acid rain supports meteorite theory
Space & Earth / Earth Sciences
Jul 15, 2008 |
4.5 / 5 (37) |
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(PhysOrg.com) -- The Tunguska catastrophe in 1908 evidently led to high levels of acid rain. This is the conclusion reached by Russian, Italian and German researchers based on the results of analyses of peat ...
The Tunguska Event--100 Years Later
Space & Earth / Earth Sciences
Jul 01, 2008 |
4.6 / 5 (21) |
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The year is 1908, and it's just after seven in the morning. A man is sitting on the front porch of a trading post at Vanavara in Siberia. Little does he know, in a few moments, he will be hurled from his chair ...
Researchers will study ways to deflect asteroids
Space & Earth / Space Exploration
May 26, 2008 |
4 / 5 (5) |
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An Asteroid Deflection Research Center (ADRC) has been established on the Iowa State campus to bring researchers from around the world to develop asteroid deflection technologies. The center was signed into effect in April ...
Asteroid Threatens to Hit Mars
Space & Earth / Space Exploration
Dec 21, 2007 |
4.6 / 5 (33) |
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Astronomers funded by NASA are monitoring the trajectory of an asteroid named 2007 WD5 that is expected to cross the orbital path of Mars early next year. Calculations by NASA's Near-Earth Object Office at the ...
Supercomputers offer new explanation of Tunguska disaster
Space & Earth / Earth Sciences
Dec 18, 2007 |
4.4 / 5 (39) |
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The stunning amount of forest devastation at Tunguska, a century ago in Siberia, may have been caused by an asteroid only a fraction as large as previously published estimates, Sandia supercomputer simulations ...
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