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Hot Topic
Solar System
Meteorites, Comets and Asteroids
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Amino Acids: In Hot Water
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| Topic: Meteorites, Comets and Asteroids |
06/02/08 |
| Meteorites shower the Earth with amino acids. A new project is exploring how long amino acids could survive on asteroids, meteorites, and the early Earth. The results could help scientists pinpoint how and where life on our planet began. |
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Asteroid Top Spin
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| Topic: Meteorites, Comets and Asteroids |
06/01/08 |
| An amateur astronomer has made an observation that will boost our knowledge of near Earth asteroids. Now the fastest known, naturally rotating object in our solar system has been identified. |
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Knocking Back Rocks
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| Topic: Meteorites, Comets and Asteroids |
05/30/08 |
| Iowa State University has now established the Asteroid Deflection Research Center (ADRC). The ADRC will gather researchers from around the world to develop technologies that will protect the Earth from devastating impacts. |
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Life Falling Back to Earth
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| Topic: Meteorites, Comets and Asteroids |
05/15/08 |
| New research shows that organisms living inside rocks ejected from planets by asteroid impacts may be able to survive their trip into orbit – and back. |
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Asteroid BB Gun
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| Topic: Meteorites, Comets and Asteroids |
05/10/08 |
| Researchers confirm that asteroid impacts can strike with enough force to liquefy carbon deep in the Earth's crust and eject it skyward to form beads that then blanket the planet. The finding is helping scientists interpret how past impacts effected life on Earth. |
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Solar System Bounce
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| Topic: Meteorites, Comets and Asteroids |
05/07/08 |
| A new computer model may demonstrate how comets from the outer solar system are sent into the inner solar system where they can impact with planets. The model could also explain why the Earth might have experienced cycles of high impact activity throughout its history. |
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Osmium Tracks Earth Impacts
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| Topic: Meteorites, Comets and Asteroids |
04/16/08 |
| Scientists have developed a new way of determining the size and frequency of meteorites that have collided with Earth in the past. Their work has provided new information about the impact that may have caused the demise of the dinosaurs. |
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Meteorites a Rich Source for Primordial Soup
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| Topic: Meteorites, Comets and Asteroids |
03/15/08 |
| A new study shows that meteorites may contain concentrations of amino acids that are ten times higher than levels previously measured. This means the early Solar System was quite rich in the organic building blocks of life, and that fallout from space may have played a role in life's origin on Earth. |
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Peruvian Fireball
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| Topic: Meteorites, Comets and Asteroids |
03/14/08 |
| In September of last year, an object came crashing down in the Peruvian countryside and captured headlines around the world. Now the object has been identified and is changing our knowledge of stony meteorites. |
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Asteroid Triple Threat
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| Topic: Meteorites, Comets and Asteroids |
02/19/08 |
| Asteroid 2001 SN263 has now been identified as the first ever near-Earth triple asteroid. Observations of the asteroid triplet are yielding surprising new insights about the asteroid belt between Mars and Jupiter. |
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