 |
 |
Sort by
|
|
|
|
Hot Topic
Solar System
Meteorites, Comets and Asteroids
|
|
|
| |
|
|
Toxic Shock
|
| Topic: Meteorites, Comets and Asteroids |
03/03/10 |
| Summary: Asteroid impacts may not only account for extinctions in the oceans and on land 65 million years ago. According to new research, the resulting dust, darkness and toxic metal contamination following impact may also be responsible for the unevenness of extinctions and recovery following the impact event. |
|
|
|
|
Shooting Meteorites in a Barrel
|
| Topic: Meteorites, Comets and Asteroids |
02/25/10 |
| Summary: High-impact lab experiments simulate whether the building blocks of life could have survived the rough arrival on Earth via meteorite impact. |
|
|
|
|
Stardust Burns For Comet
|
| Topic: Meteorites, Comets and Asteroids |
02/20/10 |
| Summary: NASA's Stardust spacecraft was the first to collect samples from a comet and return them to Earth. Now, the spacecraft is preparing for another cometary visit. The craft is now scheduled to perform a flyby of the comet Tempel 1 in 2011. |
|
|
|
|
X Marks the Spot
|
| Topic: Meteorites, Comets and Asteroids |
02/03/10 |
| Summary: NASA´s Hubble Space Telescope has observed a mysterious X-shaped debris pattern and trailing streamers of dust that suggest a head-on collision between two asteroids. The never-before-seen event is providing scientists with insight into the types of cosmic collisions that helped form the asteroid belt. |
|
|
|
|
Counting and Countering NEOs
|
| Topic: Meteorites, Comets and Asteroids |
01/23/10 |
| Summary: A new report from the National Research Council lays out options NASA could follow to detect more near-Earth objects. In the past, asteroid and comet impacts have had profound effects on the evolution of life. Many scientists speculate that impacts could also alter the future of life as we know it. |
|
|
|
|
Astrobiology Top 10: Glycine in the Grid
|
| Topic: Meteorites, Comets and Asteroids |
12/26/09 |
| Summary: AM is highlighting the top 10 astrobiology stories of 2009. At number 8 is a report that the amino acid glycine was found in samples from a comet. This supports the theory that some of the ingredients for life were delivered to the Earth by comet and meteorite impacts. (This story originally was published on August 19, 2009). |
|
|
|
|
|
Incoming Comets
|
| Topic: Meteorites, Comets and Asteroids |
12/20/09 |
| Summary: A new method of detecting past comet strikes on Earth could help scientists understand how frequent large impacts were in the past. The frequency of impacts could be used to determine the likelihood of future, catastrophic impacts. |
|
|
|
|
Tracking Dawn
|
| Topic: Meteorites, Comets and Asteroids |
12/06/09 |
| Summary: NASA's Dawn spacecraft is making progress through the solar system toward the dwarf planets Vesta and Ceres. By studying these mysterious worlds, Dawn will unlock secrets about the formation of the solar system. The information will help astrobiologists understand how Earth became a habitable world for life as we know it. |
|
|
|
|
|
Primitive Particles
|
| Topic: Meteorites, Comets and Asteroids |
11/03/09 |
| Summary: Scientists have discovered 'ultra-primitive' material in stratospheric dust samples collected by high-flying aircraft. The material likely wafted into the atmosphere of Earth as our planet passed through the tail of a comet, and could help scientists understand the early solar system and the role that comets may have played in life's origins. |
|
|
|
|
Amending the Approach of Apophis
|
| Topic: Meteorites, Comets and Asteroids |
10/13/09 |
| Summary: NASA scientists have recalculated the path of a large asteroid and determined that it is less likely to have a hazardous encounter with Earth than previously thought. The chances of Apophis hitting the Earth in 2036 are now thought to be about four-in-a-million. |
|
|
|
|
|
