News tagged with asteroid fragments
Half-baked asteroids have Earth-like crust
Space & Earth / Earth Sciences
Jan 07, 2009 |
4.7 / 5 (3) |
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Asteroids are hunks of rock that orbit in the outer reaches of space, and scientists have generally assumed that their small size limited the types of rock that could form in their crusts. But two newly discovered ...
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Discovery of the source of the most common meteorites
Jul 10, 2008 |
4.1 / 5 (26) |
0
Astronomy & Astrophysics is publishing the first discovery by T. Mothé-Diniz (Brazil) and D. Nesvorný (USA) of asteroids with a spectrum similar to that of ordinary chondrites, the meteoritic material that m ...
Asteroid Impact Helps Trace Meteorite Origins
Space & Earth / Space Exploration
Mar 25, 2009 |
4.6 / 5 (7) |
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(PhysOrg.com) -- The car-sized asteroid that exploded above the Nubian Desert last October was small compared to the dinosaur-killing, civilization-ending objects that still orbit the sun. But that didn't ...
Asteroid Juno Grabs the Spotlight
Space & Earth / Space Exploration
Sep 17, 2009 |
3 / 5 (1) |
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(PhysOrg.com) -- Toward the end of September, the sun will turn a spotlight on the asteroid Juno, giving that bulky lump of rock a rare featured cameo in the night sky. Those who get out to a dark, unpolluted ...
Solar wind tans young asteroids
Space & Earth / Space Exploration
Apr 22, 2009 |
4 / 5 (4) |
1
A new study published in Nature this week reveals that asteroid surfaces age and redden much faster than previously thought -- in less than a million years, the blink of an eye for an asteroid. This study ...
Steins: A diamond in the sky
Space & Earth / Space Exploration
Sep 08, 2008 |
4.4 / 5 (12) |
2
(PhysOrg.com) -- The first images from Rosetta's OSIRIS imaging system and VIRTIS infrared spectrometer were derived from raw data this morning and have delivered spectacular results.
Dawn Enters Asteroid Belt -- For Good
Space & Earth / Space Exploration
Nov 16, 2009 |
4.7 / 5 (7) |
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(PhysOrg.com) -- NASA's Dawn spacecraft re-entered our solar system's asteroid belt today, Nov. 13, and this time it will stay there.
Unusual meteorite found by time-lapse camera observatory
Space & Earth / Space Exploration
Nov 05, 2009 |
4.3 / 5 (15) |
3
(PhysOrg.com) -- An unusual meteorite with an interesting orbit has been tracked to the ground using a photographic observatory that records time-lapse images of fireballs traveling across the sky.
Breakup event in the main asteroid belt likely caused dinosaur extinction 65 million years ago
Space & Earth / Space Exploration
Sep 05, 2007 |
4.6 / 5 (151) |
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The impactor believed to have wiped out the dinosaurs and other life forms on Earth some 65 million years ago has been traced back to a breakup event in the main asteroid belt.
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). ...
Spacecraft Could Save Earth from Asteroids
Space & Earth / Space Exploration
Sep 04, 2009 |
3.8 / 5 (17) |
38
(PhysOrg.com) -- British space engineers working for a space company in Stevenage in England, have designed a "gravity tractor" spacecraft to deflect any asteroids threatening to collide with Earth. The announcement ...
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