News tagged with periodic comet
Image: Comet Hartley 2 approaches Earth
A pale green interloper among the stars of Cassiopeia, Comet Hartley 2 shines in this four-minute exposure taken on the night of Sept. 28, 2010, by NASA astronomer Bill Cooke.
Space & Earth / Space Exploration
Sep 30, 2010 |
4.8 / 5 (6) |
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The Perseids are Coming
Splat! There goes another bug on the windshield. Anyone who's ever driven down a country lane has seen it happen. A fast moving car, a cloud of multiplying insects, and a big disgusting mess.
Space & Earth / Space Exploration
Aug 10, 2009 |
5 / 5 (2) |
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Search results for periodic comet
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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Asteroid nudged by sunlight: Most precise measurement of Yarkovsky effect
Scientists on NASA's asteroid sample return mission, Origins, Spectral Interpretation, Resource Identification, Security, Regolith Explorer (OSIRIS-REx), have measured the orbit of their destination asteroid, ...
Space & Earth / Space Exploration
May 24, 2012 |
4.9 / 5 (8) |
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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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Extremely rare transit of Venus to occur on June 5, 2012
A few hours before sunset on June 5th, 2012 residents of the Washington, DC metropolitan area will have a chance to witness one of the rarest celestial phenomena known: a “Transit of Venus”.
May 23, 2012 |
5 / 5 (5) |
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Newfound exoplanet may turn to dust
Researchers at MIT, NASA and elsewhere have detected a possible planet, some 1,500 light years away, that appears to be evaporating under the blistering heat of its parent star. The scientists infer that a ...
May 18, 2012 |
4.4 / 5 (10) |
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You're beautiful, Vesta
When UCLA's Christopher T. Russell looks at the images of the protoplanet Vesta produced by NASA's Dawn mission, he talks about beauty as much as he talks about science.
Space & Earth / Space Exploration
May 10, 2012 |
5 / 5 (4) |
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Splatters of molten rock signal period of intense asteroid impacts on Earth
New research reveals that the Archean era — a formative time for early life from 3.8 billion years ago to 2.5 billion years ago — experienced far more major asteroid impacts than had been previously ...
Space & Earth / Space Exploration
Apr 25, 2012 |
4.6 / 5 (7) |
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Tiny 'spherules' reveal details about Earth's asteroid impacts
(Phys.org) -- Researchers are learning details about asteroid impacts going back to the Earth's early history by using a new method for extracting precise information from tiny "spherules" embedded in layers ...
Space & Earth / Earth Sciences
Apr 25, 2012 |
5 / 5 (1) |
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Team finds asteroids were bombarded by iron loving elements too
(Phys.org) -- A team made up of a diverse group of researchers has found after studying the composition of several asteroids that most such planetesimals had an abundance of highly siderophile elements in ...
Space & Earth / Space Exploration
Apr 06, 2012 |
4.8 / 5 (5) |
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Organic compounds found in proto-planetary disks
(PhysOrg.com) -- A new study from scientists in the US has reported that organic compounds could be formed in proto-planetary disks, and could have seeded the development of life in our own and other planetary ...
Mar 30, 2012 |
5 / 5 (7) |
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List of search results for periodic comet
