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Fire in the Ice
Topic: Meteorites, Comets and Asteroids
03/15/06
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.

PETing Stardust
Topic: Meteorites, Comets and Asteroids
02/26/06
Scientists routinely examine extraterrestrial material that has fallen to Earth as meteorites, but never before NASA's Stardust mission have they had access to verified samples of a comet. The leftover debris from the formation of the solar system 4.5 billion years ago, comets consist mostly of ice, dust and rock.

Earth's Iron Building Blocks
Topic: Meteorites, Comets and Asteroids
02/19/06
Iron meteorites are probably the surviving fragments of the long-lost asteroid-like bodies that formed the Earth and other nearby rocky planets, according to researchers from Southwest Research Institute® (SwRI®) and Observatoire de la Cote d'Azur in Nice, France. Their findings are described in the Feb.16 issue of Nature.

Icy Tempel
Topic: Meteorites, Comets and Asteroids
02/10/06
Comet Tempel 1, which created a flamboyant Fourth of July fireworks display in space last year, is covered with a small amount of water ice. These results, reported by members of NASA's Deep Impact team in an online edition of Science, offer the first definitive evidence of surface ice on any comet.

Jupiter's Dos Equis
Topic: Meteorites, Comets and Asteroids
02/03/06
A bound pair of icy comets similar to the dirty snowballs circling outside the orbit of Neptune has been found lurking in the shadow of Jupiter.

Marking a Milestone
Topic: Meteorites, Comets and Asteroids
02/02/06
Travel with Aaron Gronstal on a drilling expedition in Chesapeake Bay, the site of a 35 million-year-old impact crater. This portion of his journal is the final part of a 4-part series.

Coping With Cores
Topic: Meteorites, Comets and Asteroids
01/30/06
Travel with Aaron Gronstal on a drilling expedition in Chesapeake Bay, the site of a 35 million-year-old impact crater. This portion of his journal is part 3 of a 4-part series.

Cracking Open a Vault
Topic: Meteorites, Comets and Asteroids
01/23/06
Travel with Aaron Gronstal on a drilling expedition in Chesapeake Bay, the site of a 35 million-year-old impact crater. This portion of his journal is part 2 of a 4-part series.

Veritable Covering of Dust
Topic: Meteorites, Comets and Asteroids
01/22/06
Scientists from the California Institute of Technology (Caltech), Southwest Research Institute® (SwRI®), and Charles University in the Czech Republic have made the first positive link between a breakup event in the main asteroid belt and a large quantity of interplanetary dust particles deposited on Earth.

Dissecting Stardust
Topic: Meteorites, Comets and Asteroids
01/20/06
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.

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