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Hot Topic
Solar System
Meteorites, Comets and Asteroids
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Aquanauts on an Asteroid Mission
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| Topic: Meteorites, Comets and Asteroids |
07/21/12 |
| A team of aquanauts were recently joined by ESA astronaut Tim Peake to test communication strategies for a future mission to an asteroid. The explorers spent 12 days underwater on the Neemo mission simulating a trip to an asteroid 15 million kilometers from Earth. |
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Design for a Deep Space Habitat
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| Topic: Meteorites, Comets and Asteroids |
07/17/12 |
| NASA has released a new report discussing human deep-space exploration. The paper explores the requirements of a ship that could carry astronauts to a near Earth asteroid. |
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Meteorites Most Likely Source of Earth's Water
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| Topic: Meteorites, Comets and Asteroids |
07/13/12 |
| A new study suggests that meteorites and their parent asteroids are the most-likely sources of water on Earth. Understanding if and how volatile elements were delivered to the early Earth is important in determining the origins of water and life on our planet. |
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Asteroid Fire Drill
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| Topic: Meteorites, Comets and Asteroids |
07/06/12 |
| On May 29, a bus-sized asteroid sped past the Earth in the sixth-closest approach on record. Dubbed 2012 KT42, the asteroid crossed the orbits of weather and television satellites only 22,000 miles above our planet's surface. |
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Earth's Oldest Impact Crater
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| Topic: Meteorites, Comets and Asteroids |
06/30/12 |
| Geologists have discovered evidence of a 100-kilometer-wide crater in Greenland. The impact structure is the result of a massive asteroid or comet impact a billion years before any other known collision on Earth. |
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Meteorite Metal among the Solar System's Oldest
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| Topic: Meteorites, Comets and Asteroids |
06/28/12 |
| Scientists have discovered a new mineral embedded in a meteorite that exploded over Mexico in 1969. The mineral is believed to be among the oldest formed in the Solar System. |
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Earth-Passing Asteroid Bigger than Estimated
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| Topic: Meteorites, Comets and Asteroids |
06/24/12 |
| An asteroid that recently passed by Earth is about twice as large as originally estimated, and it would have had serious global consequences if it had impacted Earth. |
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Workshop Findings on Asteroid 2011 AG5
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| Topic: Meteorites, Comets and Asteroids |
06/18/12 |
| Scientists anticipate that the asteroid 2011 AG5 will fly safely past and not impact the Earth in 2040. |
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New Evidence Links Cosmic Impact to Mass Extinction
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| Topic: Meteorites, Comets and Asteroids |
06/13/12 |
| Melt-glass material in a thin layer of sedimentary rock, which dates back nearly 13,000 years, may suggest that an impact was linked to the extinction of North America's megafauna. |
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