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Hot Topic Solar System Meteorites, Comets and Asteroids
The Astrobiology Connection
Topic: Meteorites, Comets and Asteroids
Welcome to Radio Astrobiology, the podcast of Astrobiology Magazine. Join us as David Grinspoon investigates a mystery at the bottom of the Earth, and explains what it might mean for the possibility for life elsewhere in the solar system.

Arctic, Antarctic, Mars
Topic: Meteorites, Comets and Asteroids
When scientists examined a meteorite from Mars under a microscope, they discovered tiny mineral spheres that, some argued, were produced by living organisms. Now, researchers working in the high Arctic have found similar mineral features, produced not by microbes, but by a volcano.

Fire in the Ice
Topic: Meteorites, Comets and Asteroids
Scientists have analyzed some of the particles captured by NASA's Stardust mission and returned to Earth earlier this year. And they've found a big surprise. Although the particles come from a comet that formed in the deep-frozen outer reaches of the solar system, they contain minerals that could only have been created near the sun.

Dissecting Stardust
Topic: Meteorites, Comets and Asteroids
When the Stardust sample return capsule returned safely home, mission scientists breathed a sigh of relief. When they opened the capsule, they gasped in delight. Now, they are whistling a happy tune as they examine the many microscopic bits of comet dust.

Stardust Safely Home
Topic: Meteorites, Comets and Asteroids
The Stardust mission ended not with a bang Sunday morning, but with the soft thud of the sample return capsule parachuting down to a muddy Utah field. The capsule contains interstellar dust particles and samples of the comet Wild 2.

Sampling Stardust on Sunday
Topic: Meteorites, Comets and Asteroids
This weekend, the Stardust spacecraft will return to Earth after a 7-year, 2.88-billion-mile journey.

Stardust's Return
Topic: Meteorites, Comets and Asteroids
Samples of the comet Wild 2 will come down to Earth on January 15, 2006. But what kind of shape will they be in? Worries about the sample return capsule's parachutes - and memories of the Genesis mission - add nail-biting drama to the event.

Crash Course in Comet Construction
Topic: Meteorites, Comets and Asteroids
Comet Tempel 1 was hit hard by a NASA spacecraft earlier today. Deep Impact scientists provided more details about what the impact has taught us about the comet's structure.

Topic: Meteorites, Comets and Asteroids
The Deep Impact mission proceeded exactly as planned, with the impactor spacecraft smashing into the sunlit side of comet Tempel 1.

The Pause before the Crash
Topic: Meteorites, Comets and Asteroids
The Deep Impact spacecraft is nearing the comet Tempel 1. On Sunday, July 3, a smaller spacecraft will separate from the mothership, ready to sacrifice its life for the benefit of cometary scientists everywhere.
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