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Solar System
Meteorites, Comets and Asteroids
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Hyperactive Hartley 2
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| Topic: Meteorites, Comets and Asteroids |
06/21/11 |
| Summary: Data from NASA's EPOXI mission has been used to detail the 'hyperactive' nature of comet Hartley 2. EPOXI witnessed carbon dioxide jets and water vapor, providing new information about the composition of comets and their potential role in life's origins on Earth. |
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July Rendezvous with Vesta
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| Topic: Meteorites, Comets and Asteroids |
06/17/11 |
| Summary: NASA's Dawn mission is now approaching the protoplanet Vesta. Small, terrestrial bodies like Vesta can teach astrobiologists about the early solar system, the formation and nature of rocky worlds, and the composition of meteorites and their potential role in life's origins on Earth. |
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Rosetta's First Glimpse of the Comet
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| Topic: Meteorites, Comets and Asteroids |
06/11/11 |
| Summary: ESA's Rosetta spacecraft has obtained the first images of its target, the comet Churyumov-Gerasimenko. |
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Comet Elenin: Just Passing By
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| Topic: Meteorites, Comets and Asteroids |
06/11/11 |
| Summary: The long-period comet Elenin is heading in the direction of Earth and will pass by on October 16. The comet's closest approach will be 35 million kilometers and, despite exaggerated claims by some internet sites, will have no affect on the Earth. |
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Meteorite Reveals Chemistry of Early Earth
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| Topic: Meteorites, Comets and Asteroids |
06/10/11 |
| Summary: New research shows that variations in the organic materials found in carbonaceous chondrites is due to hydrothermal activity that took place during the early solar system when the meteorites were still part of larger parent bodies, such as asteroids. |
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Rendezvous with RQ36
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| Topic: Meteorites, Comets and Asteroids |
05/28/11 |
| Summary: A new NASA mission to launch in 2016 will be the first U.S. mission to carry samples from an asteroid back to Earth. The samples from the OSIRIS-REx mission will help astrobiologists better understand our solar system and the role of asteroids in the origins of life on Earth. |
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A New Breed of Comet
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| Topic: Meteorites, Comets and Asteroids |
05/20/11 |
| Summary: Data from NASA's EPOXI mission and ground-based telescopes indicates that the comet Hartley-2 could be the first of a new breed of comet. |
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Tracking Tumbling Comets
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| Topic: Meteorites, Comets and Asteroids |
05/19/11 |
| Summary: For the first time, astronomers have observed a tumbling comet nucleus with a changing rotational rate. The study combined with results from NASA's EPOXI mission are providing new insight about these objects that may have played a role in life's origin on Earth, and could also play a role in future exploration. |
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Comet Elenin's Distant Display
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| Topic: Meteorites, Comets and Asteroids |
05/07/11 |
| Summary: Comet Elenin is making a trip through the inner-solar system this fall. Its voyage will give scientists a chance to study how the comet is effected as it passes near the Sun. |
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Awaiting an Asteroid's Close Approach
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| Topic: Meteorites, Comets and Asteroids |
05/04/11 |
| Summary: On November 8, 2011, the asteroid 2005 YU55 will be making a relatively close flyby of Earth. There is no threat of a collision between the asteroid and our planet, but its approach will provide scientists with a close-up view of a 400-meter-wide space rock. |
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