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Solar System
Meteorites, Comets and Asteroids
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Capturing an Asteroid Collision
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| Topic: Meteorites, Comets and Asteroids |
04/30/11 |
| Summary: NASA satellites have shown that an increase in the brightness of the asteroid Scheila is likely due to a collision between Scheila and a smaller asteroid. Studying the physical properties and behavior of asteroids can help us understand their potential role in the origins of life on Earth. |
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Cold Asteroids May Have a Soft Heart
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| Topic: Meteorites, Comets and Asteroids |
04/17/11 |
| Summary: A new analysis of the well-known Allende meteorite could change prevailing theories about the nature of some asteroids and the formation of planets like Earth. The results indicate that asteroids with molten cores may be abundant in space, and they even could have given the Earth its oceans. |
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Asteroid is Earth's Companion
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| Topic: Meteorites, Comets and Asteroids |
04/10/11 |
| Summary: A recently discovered asteroid has been following the Earth in its motion around the Sun. The asteroid has been following us for 250,000 years and may be related to the origin of our planet. |
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New Type of Mineral Found in Historic Meteorite
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| Topic: Meteorites, Comets and Asteroids |
04/09/11 |
| Summary: Researchers have identified a new mineral named 'Wassonite' in a meteorite that was discovered in 1969. The discovery was made by examining the meteorite was examined using 21st-century nanotechnology. |
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Frozen Comet had Watery Past
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| Topic: Meteorites, Comets and Asteroids |
04/09/11 |
| Summary: Scientists have found evidence for the presence of liquid water in a comet. The discovery changes current thinking about the nature of comets, and could have implications for the search for life in our solar system. |
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Meteorite Sprinkles on Fresh Baked Earth and Mars
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| Topic: Meteorites, Comets and Asteroids |
04/08/11 |
| Summary: Micro-meteorites may have caused the climates of Earth and Mars to cool four billion years ago. These tiny meteorites could have bombarded the planets, making it difficult for life to survive during this early period in the Solar System. |
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The Mystery of Spring's Many Meteors
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| Topic: Meteorites, Comets and Asteroids |
04/05/11 |
| Summary: Spring is a time for fireballs. The rate of bright meteors climbs during this time of year, making spring a great time for astrobiologists to watch the skies. |
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When is an Asteroid not an Asteroid?
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| Topic: Meteorites, Comets and Asteroids |
03/30/11 |
| Summary: NASA's Dawn spacecraft is preparing to enter orbit around the 'minor planet' Vesta. The data that Dawn returns will help astrobiologists understand how small rocky bodies in our solar system were formed. |
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StarDust's Firey Farewell
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| Topic: Meteorites, Comets and Asteroids |
03/26/11 |
| Summary: NASA's Stardust spacecraft has sent its last transmission to Earth. Since its launch in 1999, Stardust has provided astrobiologists with a wealth of data about the composition and nature of comets. |
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Earthquake Shakes Japanese Science
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| Topic: Meteorites, Comets and Asteroids |
03/24/11 |
| Summary: The particle accelerator being used to analyze asteroid samples returned to Earth by by the Hayabusa spacecraft was damaged in the March 11 earthquake in Japan. Researchers have reported that the samples are undamaged and the accelerator will be repaire |
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