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Hot Topic
Solar System
Meteorites, Comets and Asteroids
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A Comet's Only Cameraman
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| Topic: Meteorites, Comets and Asteroids |
08/11/05 |
| No one knew what to expect from the Deep Impact collision between a ballistic spaceprobe and a comet. But scientists sat down with digital effects specialist, Dan Maas, to take a guess. As it turns out, both Maas and the scientists got it right in a spectacular visualization of what it might be like to broadside a comet. |
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Craters or Cradles?
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| Topic: Meteorites, Comets and Asteroids |
08/09/05 |
| Meteor impacts are generally regarded as monstrous killers and one of the causes of mass extinctions throughout the history of life. But there is a chance the heavy bombardment of Earth by meteors during the planet's youth actually spurred early life on our planet, say Canadian geologists. |
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Tempel's New Tail
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| Topic: Meteorites, Comets and Asteroids |
07/24/05 |
| Astronomers using the Palomar Observatory's 200-inch Hale Telescope have been amazed by comet Tempel 1's behavior during and after its collision with the Deep Impact space probe. |
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X-ray Depth Vision
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| Topic: Meteorites, Comets and Asteroids |
07/14/05 |
| Here come the X-rays, on cue. Scientists studying the Deep Impact collision using NASA's Swift satellite report that comet Tempel 1 is getting brighter and brighter in X-ray light with each passing day. |
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Comet Was Ka-Powdered
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| Topic: Meteorites, Comets and Asteroids |
07/09/05 |
| Data from Deep Impact's instruments indicate an immense cloud of fine powdery material was released when the probe slammed into the nucleus of comet Tempel 1 at 6.3 miles per second. The cloud indicated the comet is covered in the powdery stuff. |
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Swift Witness to Comet Broadsiding
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| Topic: Meteorites, Comets and Asteroids |
07/05/05 |
| The Swift satellite is providing the only simultaneous multi-wavelength observation of the Tempel 1 dust-off, with a suite of instruments capable of detecting optical light, ultraviolet, X-rays and gamma rays. Different wavelengths reveal different secrets about the comet. |
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Photo Finish
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| Topic: Meteorites, Comets and Asteroids |
07/05/05 |
| One of the fascinating elements of collecting the different images from the Deep Impact mission is comparing and contrasting the same event seen through different lenses. Seeing the comet collision in color is no exception. |
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Impact!
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| Topic: Meteorites, Comets and Asteroids |
07/04/05 |
| The Deep Impact mission proceeded exactly as planned, with the impactor spacecraft smashing into the sunlit side of comet Tempel 1. |
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Tempel to the Telescopes
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| Topic: Meteorites, Comets and Asteroids |
07/04/05 |
| Two space-based assets, the Hubble Telescope and the European X-ray observatory, closely monitored the first ballistic impact of a comet. The early results show a icy interior and perhaps the large debris cloud points towards a harder model for the comet nucleus itself rather a slush or loose rubble pile. |
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Crash Course in Comet Construction
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| Topic: Meteorites, Comets and Asteroids |
07/04/05 |
| Comet Tempel 1 was hit hard by a NASA spacecraft earlier today. Deep Impact scientists provided more details about what the impact has taught us about the comet's structure. |
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