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Hot Topic
Solar System
Meteorites, Comets and Asteroids
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Comet Collisions Every Six Seconds
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| Topic: Meteorites, Comets and Asteroids |
11/10/12 |
| Every six seconds, for millions or years, comets have been colliding with one another near a star in the constellation Cetus, which is visible to the naked eye. The star hosts one of only two known dusty disks that also contain large amounts of gas. |
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A Young Surface on Vesta
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| Topic: Meteorites, Comets and Asteroids |
11/02/12 |
| New data shows that a form of weathering that occurs on airless bodies like the Moon does not alter the surface of Vesta in the same way. |
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Using Paintballs to Deflect an Asteroid
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| Topic: Meteorites, Comets and Asteroids |
10/27/12 |
| A new study details how 'paint balls' could be used to alter the reflectivity of an Earth-bound asteroid, ultimately helping to alter it's course and keep our planet safe from an impact. |
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Evidence of a Dynamo on Vesta
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| Topic: Meteorites, Comets and Asteroids |
10/13/12 |
| A new study has found that Vesta once had a molten, swirling mass of fluid inside the asteroid that generated a magnetic field. |
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Asteroid Vesta May Be a Stunted Planet
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| Topic: Meteorites, Comets and Asteroids |
09/30/12 |
| A new study is reinforcing claims that the asteroid Vesta has a layered interior - a quality usually found only in planets and large moons. |
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The Mystery of Asteroid Oljato's Magnetic Disturbance
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| Topic: Meteorites, Comets and Asteroids |
09/25/12 |
| The asteroid 2201 Oljato appears to be exhibiting some strange behavior. Previous observations of Oljato showed unusual magnetic peaks, but new data from Venus Express suggest the asteroid has lost its magnetic mojo. |
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Dawn Sees Hydrated Minerals on Vesta
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| Topic: Meteorites, Comets and Asteroids |
09/23/12 |
| NASA's Dawn spacecraft has revealed that the surface of the giant asteroid Vesta has volatile materials in a broad swath around its equator. |
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Did an Ancient Meteor Have an Icy Double Punch?
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| Topic: Meteorites, Comets and Asteroids |
09/22/12 |
| A new study suggests that a large meteor impact 2.5 million years ago could have caused massive tsunamis and kick started the world's Ice Ages. |
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More Evidence for the Clovis Impact
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| Topic: Meteorites, Comets and Asteroids |
09/20/12 |
| New findings support the theory that a climate-altering cosmic impact that occurred some 13,000 years ago. |
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