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Hot Topic Solar System Meteorites, Comets and Asteroids
 
Small Rocks Make Big Impacts
Topic: Meteorites, Comets and Asteroids
01/03/08
Researchers have found that a smaller asteroid than previously thought caused the destructive 1908 Tunguska impact in Siberia. The finding is helping scientists determine the amount of damage small asteroids can potentially cause to ecosystems and human populations.

Astrobiology Top 10: STONEs in Space
Topic: Meteorites, Comets and Asteroids
12/27/07
Astrobiology Magazine is looking back over 2007, highlighting the Top 10 astrobiology stories of the year. At number 7 is scientific evidence against the Panspermia hypothesis, which says life could travel from planet to planet on meteorites. An experiment by European scientists shows that photosynthetic life probably would not survive the journey.

Astrobiology Top 10: The Baptistina Breakup
Topic: Meteorites, Comets and Asteroids
12/25/07
Astrobiology Magazine is looking back over 2007, highlighting the Top 10 astrobiology stories of the year. At number 9 is a story about a breakup event in the main asteroid belt. This event produced the impactor that hit Earth 65 million years ago, ending the age of the dinosaurs and having a profound effect on the evolution of life as we know it.

Astrobiology Top 10: Dawn Rising
Topic: Meteorites, Comets and Asteroids
12/24/07
Astrobiology Magazine is looking back over 2007, highlighting the Top 10 astrobiology stories of the year. At number 10 is the launch of the Dawn mission. The spacecraft will visit Vesta and Ceres, two large asteroid belt objects that have been witness to much of our solar system´s history.(This story was originally published on September 27, 2007).

Radio Astrobiology: The Chemistry of Carbon
Topic: Meteorites, Comets and Asteroids
12/10/07
Join us for Astrobiology Magazine´s latest podcast: "Naked Astrobiology" with our host Simon Mitton. In this interview with Pascale Ehrenfreund, she describes her studies of meteorites, comets, and the organic chemistry of space.

Rethinking Jupiter
Topic: Meteorites, Comets and Asteroids
11/12/07
The planet Jupiter is thought to act as a "cosmic vacuum cleaner," sucking up comets and asteroids that could potentially hit the Earth and endanger all life on our planet. But new research has more closely examined Jupiter's ability to protect the inner solar system, and there are some suprising findings.

Analyzing Apophis
Topic: Meteorites, Comets and Asteroids
10/16/07
Using Earth-based telescopes, researchers have determined the composition of a near-Earth asteroid that will pass close to the Earth in the future. The research is a test case for studying Earth-bound asteroids that may pose a threat to life's future on our planet.

Catching the Tail of a Comet
Topic: Meteorites, Comets and Asteroids
10/05/07
A chance encounter between the Ulysses spacecraft and Comet McNaught has provided interesting information about the composition of comets. In addition, the observations yielded unique insight into the behavior of the solar wind.

Holding Fast to an Asteroid
Topic: Meteorites, Comets and Asteroids
09/28/07
A new tether system may help astronauts walk on the surface of asteroids. The technology would help them safely perform experiments to determine the role of comets and asteroids in the origin of life.

Dawn Rising
Topic: Meteorites, Comets and Asteroids
09/27/07
The Dawn mission launched today at 7:34 am EDT. The mission will study Vesta and Ceres, two large asteroid belt objects that have been witness to much of our solar system´s history.

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