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Hot Topic Solar System Meteorites, Comets and Asteroids
 
Meteorites May Answer Life's Chirality Question
Topic: Meteorites, Comets and Asteroids
01/21/11
Summary: New research shows that a wide range of asteroids were capable of creating the kind of amino acids used by life on Earth. The findings support theories that meteorites may have played a role in setting the preference for 'left-handed' amino acids early in life's origin on Earth.

Astrobiology Top 10: Hayabusa's Harvest
Topic: Meteorites, Comets and Asteroids
12/31/10
Summary: Astrobiology Magazine is highlighting the top 10 stories of 2010. At number 3, the Japan Aerospace Exploration Agency (JAXA) confirms that the Hayabusa spacecraft has successfully returned samples from the asteroid Itokawa. (Originally published 11/21/2010)

Astrobiology Top 10: Close Encounter with Comet Hartley 2
Topic: Meteorites, Comets and Asteroids
12/30/10
Summary: Astrobiology Magazine is highlighting the top 10 stories of 2010. At number 4 is the flyby of comet Hartley 2 by NASA's EPOXI spacecraft. The images it captured show a peanut-shaped nucleus with many jets of gas spewing from its surface. (Originally published 11/05/2010

Asteroid's Coat of Many Colors
Topic: Meteorites, Comets and Asteroids
12/19/10
Summary: Scientists have discovered that an asteroid that crashed into the Nubian Desert in 2008 delivered at least 10 different types of meteorites. Some of the meteorites contain chemicals that are thought to have been important for the origin of life on Earth.

More than One Way to Make Amino Acids
Topic: Meteorites, Comets and Asteroids
12/17/10
Summary: Scientists have discovered amino acids, fundamental building blocks for life as we know it, in a meteorite where none were expected. The NASA-funded study could help astrobiologists understand the potential role of meteorites in the origin of life on the early Earth.

Hayabusa's Harvest
Topic: Meteorites, Comets and Asteroids
11/21/10
Summary: The Japan Aerospace Exploration Agency (JAXA) has confirmed that the Hayabusa spacecraft has successfully returned samples from the asteroid Itokawa. The samples will help astrobiologists understand the composition of asteroids and their potential role in the history and origin of life on Earth.

Comet Snow Storm
Topic: Meteorites, Comets and Asteroids
11/20/10
Summary: NASA's EPOXI mission has provided the first images that link jets of dust and gas with specific surface features on a comet. The data will help astrobiologists understand the nature of comets - and possibly even planets.

Close Encounter with Comet Hartley 2
Topic: Meteorites, Comets and Asteroids
11/05/10
Summary: NASA's EPOXI spacecraft flew by comet Hartley 2, and the images it captured show a peanut-shaped nucleus with many jets of gas spewing from its surface. Studying comets like Hartley 2 can help astrobiologists determine if comets played a role in the origin of life on Earth.

Asteroid Impact Could Destroy Ozone Layer
Topic: Meteorites, Comets and Asteroids
10/27/10
Summary: A new study explains how an asteroid impact with the deep ocean could affect the Earth's climate and biosphere by causing a drastic depletion of the ozone layer. The study will help us understand the role of events originating from space in the future of life on our planet.

Hurtling toward Hartley 2
Topic: Meteorites, Comets and Asteroids
10/20/10
Summary: Telescopes like Hubble and WISE are making observations of the comet Hartley 2 in preparation for its upcoming encounter with NASA's Deep Impact/EPOXI spacecraft. Studying comets like Hartley 2 can help astrobiologists determine if comets played a role in life's origins on Earth.

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