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Ancient Space Rubble
Asteroids are rocky fragments left over from the formation our the solar system about 4.6 billion years ago. Most of these chunks of space rubble, sometimes called minor planets, can be found orbiting the Sun in a belt between the orbits of Mars and Jupiter. The Asteroid Belt or Main Belt probably contains millions of asteroids.

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Big Asteroid Tumbles Harmlessly Past Earth
Big Asteroid Tumbles Harmlessly Past Earth
Asteroid 4179 Toutatis is tumbling past Earth this week. Astronomers are taking advantage of the flyby to ping the space rock using NASA radars and obtain images of unprecedented clarity.Read More...
50 Years of Robotic Planetary Exploration: Nancy Grace Roman (Retired Chief of NASA's Astronomy and Relativity Programs at NASA Headquarters)
50 Years of Robotic Planetary Exploration: Nancy Grace Roman (Retired Chief of NASA's Astronomy and Relativity Programs at NASA Headquarters)
We asked them and here is what the experts had to say about the last 50 years of planetary robotic exploration.Read More...
50 Years of Robotic Planetary Exploration: Ralph Carruth (Manager, Materials and Processes Laboratory at NASA's Marshall Space Flight Center)
50 Years of Robotic Planetary Exploration: Ralph Carruth (Manager, Materials and Processes Laboratory at NASA's Marshall Space Flight Center)
We asked them and here is what the experts had to say about the last 50 years of planetary robotic exploration.Read More...
A New Count of Potentially Hazardous Asteroids
A New Count of Potentially Hazardous Asteroids
Observations from NASA's Wide-field Infrared Survey Explorer (WISE) have led to the best assessment yet of our solar system's population of potentially hazardous asteroids.Read More...
Impacts Could be Boon for Subterranean Life
Research... at a Glance
Impacts Could be Boon for Subterranean Life
A drilling project into the Chesapeake Bay impact structure has found evidence that the subsurface may become more habitable after a large impactRead More...
Radioisotope Power Systems:  Power to Explore
Research... at a Glance
Radioisotope Power Systems: Power to Explore
For more than four decades, Radioisotope Power Systems (RPS) have played a critical role in the exploration of space, enabling missions of scientific discovery to destinations across the solar system.Read More...
NASA Plans to Visit a Near-Earth Asteroid
NASA Plans to Visit a Near-Earth Asteroid
In a few years a NASA spacecraft will seek the building blocks of life in a shovelful of asteroid dirt. The OSIRIS-REx spacecraft is targeted for launch in September 2016.Read More...
 
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Previous
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Big Asteroid Tumbles Harmlessly Past Earth
Big Asteroid Tumbles Harmlessly Past Earth
Asteroid 4179 Toutatis is tumbling past Earth this week. Astronomers are taking advantage of the flyby to ping the space rock using NASA radars and obtain images of unprecedented clarity.Read More...
50 Years of Robotic Planetary Exploration: Nancy Grace Roman (Retired Chief of NASA's Astronomy and Relativity Programs at NASA Headquarters)
50 Years of Robotic Planetary Exploration: Nancy Grace Roman (Retired Chief of NASA's Astronomy and Relativity Programs at NASA Headquarters)
We asked them and here is what the experts had to say about the last 50 years of planetary robotic exploration.Read More...
50 Years of Robotic Planetary Exploration: Ralph Carruth (Manager, Materials and Processes Laboratory at NASA's Marshall Space Flight Center)
50 Years of Robotic Planetary Exploration: Ralph Carruth (Manager, Materials and Processes Laboratory at NASA's Marshall Space Flight Center)
We asked them and here is what the experts had to say about the last 50 years of planetary robotic exploration.Read More...
A New Count of Potentially Hazardous Asteroids
A New Count of Potentially Hazardous Asteroids
Observations from NASA's Wide-field Infrared Survey Explorer (WISE) have led to the best assessment yet of our solar system's population of potentially hazardous asteroids.Read More...
Impacts Could be Boon for Subterranean Life
Research... at a Glance
Impacts Could be Boon for Subterranean Life
A drilling project into the Chesapeake Bay impact structure has found evidence that the subsurface may become more habitable after a large impactRead More...
Radioisotope Power Systems:  Power to Explore
Research... at a Glance
Radioisotope Power Systems: Power to Explore
For more than four decades, Radioisotope Power Systems (RPS) have played a critical role in the exploration of space, enabling missions of scientific discovery to destinations across the solar system.Read More...
NASA Plans to Visit a Near-Earth Asteroid
NASA Plans to Visit a Near-Earth Asteroid
In a few years a NASA spacecraft will seek the building blocks of life in a shovelful of asteroid dirt. The OSIRIS-REx spacecraft is targeted for launch in September 2016.Read More...
 
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