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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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It's Complicated: Dawn Spurs Rewrite of Vesta's Story
It's Complicated: Dawn Spurs Rewrite of Vesta's Story
Just when scientists thought they had a tidy theory for how the giant asteroid Vesta formed, a new paper from NASA's Dawn mission suggests the history is more complicated.Read More...
Dawn Reality-Checks Telescope Studies of Asteroids
Dawn Reality-Checks Telescope Studies of Asteroids
In a paper, Vishnu Reddy and other members of Dawn's framing camera team describe how up-close observations of Vesta have confirmed and provided new insights into more than 200 years of Earth-based observations.Read More...
Off the Earth, for the Earth
Off the Earth, for the Earth
Space exploration has always created benefits for humankind -- from new technologies and discoveries, to deepening international relationships and inspiring young people to pursue careers in science, technology, engineering and math.Read More...
New Imagery of Asteroid Mission
New Imagery of Asteroid Mission
NASA released Aug. 22 new photos and video animations depicting the agency's planned mission to find, capture, redirect, and study a near-Earth asteroid.Read More...
Target Asteroid Tracked by European Teams
Target Asteroid Tracked by European Teams
In a recent close-ish flyby, asteroid 2002 GT was studied in detail for the first time by a network of European astronomers.Read More...
Ten Thousandth Near-Earth Object Discovered
Ten Thousandth Near-Earth Object Discovered
More than 10,000 asteroids and comets that can pass near Earth have now been discovered. The 10,000th near-Earth object, asteroid 2013 MZ5, was first detected on the night of June 18, 2013, by the Pan-STARRS-1 telescope.Read More...
Noctilucent Clouds, Comets, and Meteor Showers
Noctilucent Clouds, Comets, and Meteor Showers
This summer northern skywatchers may be able to see Noctilucent or "Night Shining" Clouds. Also called PMCs (Polar Mesospheric Clouds), these apparitions are a bit of a puzzle for scientists because it is not entirely clear how they form.Read More...
Approaching Asteroid Has Its Own Moon
Approaching Asteroid Has Its Own Moon
Approaching asteroid 1998 QE2 has a moon.Read More...
Radar Imaging of Near Earth Asteroids
Radar Imaging of Near Earth Asteroids
Radar is a very powerful astronomical technique for studying the physical properties and refining the orbits of near-Earth asteroids.Read More...
Regenerative Fuel Cells, Energy Storage Systems for Space Applications
Regenerative Fuel Cells, Energy Storage Systems for Space Applications
This talk provides an introduction to fuel cells and regenerative fuel cell systems. It also highlights the features of this technology for enabling future NASA missions to the moon, near-Earth asteroids and Mars.Read More...
The Long and Storied Path to Human Asteroid Exploration
The Long and Storied Path to Human Asteroid Exploration
Within NASA's new FY2014 budget proposal lies a project known as the Asteroid Retrieval and Utilization Mission.Read More...
NASA's Asteroid Initiative Benefits From Rich History
NASA's Asteroid Initiative Benefits From Rich History
NASA's FY2014 budget proposal includes a plan to robotically capture a small near-Earth asteroid and redirect it safely to a stable orbit in the Earth-moon system where astronauts can visit and explore it.Read More...
What Exploded over Russia?
What Exploded over Russia?
"It was a meteor strike--the most powerful since the Tunguska event of 1908," says Bill Cooke of NASA's Meteoroid Environment Office.Read More...
One Close Fly-by: DA14 - What We Learn from NEOs
One Close Fly-by: DA14 - What We Learn from NEOs
On February 15, 2013, asteroid 2012 DA14, a 50-meter stony asteroid, will pass the Earth at a distance of about 27,680 kilometers (17,200 miles).Read More...
Possible Seismic Activity on Asteroid 2012 DA14
Possible Seismic Activity on Asteroid 2012 DA14
For eons, Earth has felt the tremors of asteroids striking our planet. From the extinction of the dinosaurs 65 million years ago to the felled forests around Tunguska in 1908, the space rocks keep coming. This week, Earth strikes back.Read More...
Asteroid DA14 Flyby Toolkit
Asteroid DA14 Flyby Toolkit
Everything you need to know about Friday's historic asteroid flyby.Read More...
50 Years of Robotic Planetary Exploration: Julie Castillo-Rogez, Planetary Geophysicist at the Jet Propulsion Laboratory (JPL)
50 Years of Robotic Planetary Exploration: Julie Castillo-Rogez, Planetary Geophysicist at the Jet Propulsion Laboratory (JPL)
We asked them and here is what the experts had to say about the last 50 years of planetary robotic exploration.Read More...
State of the Solar System
State of the Solar System
As the president prepares to give his annual State of the Union Address, we offer our own update from the ongoing exploration of our cosmic neighborhood.Read More...
Asteroid 2012 DA14 - Earth Flyby Reality Check
Asteroid 2012 DA14 - Earth Flyby Reality Check
Small near-Earth asteroid 2012 DA14 will pass very close to Earth on February 15, so close that it will pass inside the ring of geosynchronous weather and communications satellites.Read More...
Record Setting Asteroid Flyby
Record Setting Asteroid Flyby
On Feb. 15th an asteroid about half the size of a football field will fly past Earth closer than many man-made satellites. Since regular sky surveys began in the 1990s, astronomers have never seen an object so big come so close to our planet.Read More...
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...
 
Previous
Previous
    1     2     3    
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Next
    Show All
Previous
Previous
    1     2     3    
Next
Next
    Show All
It's Complicated: Dawn Spurs Rewrite of Vesta's Story
It's Complicated: Dawn Spurs Rewrite of Vesta's Story
Just when scientists thought they had a tidy theory for how the giant asteroid Vesta formed, a new paper from NASA's Dawn mission suggests the history is more complicated.Read More...
Dawn Reality-Checks Telescope Studies of Asteroids
Dawn Reality-Checks Telescope Studies of Asteroids
In a paper, Vishnu Reddy and other members of Dawn's framing camera team describe how up-close observations of Vesta have confirmed and provided new insights into more than 200 years of Earth-based observations.Read More...
Off the Earth, for the Earth
Off the Earth, for the Earth
Space exploration has always created benefits for humankind -- from new technologies and discoveries, to deepening international relationships and inspiring young people to pursue careers in science, technology, engineering and math.Read More...
New Imagery of Asteroid Mission
New Imagery of Asteroid Mission
NASA released Aug. 22 new photos and video animations depicting the agency's planned mission to find, capture, redirect, and study a near-Earth asteroid.Read More...
Target Asteroid Tracked by European Teams
Target Asteroid Tracked by European Teams
In a recent close-ish flyby, asteroid 2002 GT was studied in detail for the first time by a network of European astronomers.Read More...
Ten Thousandth Near-Earth Object Discovered
Ten Thousandth Near-Earth Object Discovered
More than 10,000 asteroids and comets that can pass near Earth have now been discovered. The 10,000th near-Earth object, asteroid 2013 MZ5, was first detected on the night of June 18, 2013, by the Pan-STARRS-1 telescope.Read More...
Noctilucent Clouds, Comets, and Meteor Showers
Noctilucent Clouds, Comets, and Meteor Showers
This summer northern skywatchers may be able to see Noctilucent or "Night Shining" Clouds. Also called PMCs (Polar Mesospheric Clouds), these apparitions are a bit of a puzzle for scientists because it is not entirely clear how they form.Read More...
Approaching Asteroid Has Its Own Moon
Approaching Asteroid Has Its Own Moon
Approaching asteroid 1998 QE2 has a moon.Read More...
Radar Imaging of Near Earth Asteroids
Radar Imaging of Near Earth Asteroids
Radar is a very powerful astronomical technique for studying the physical properties and refining the orbits of near-Earth asteroids.Read More...
Regenerative Fuel Cells, Energy Storage Systems for Space Applications
Regenerative Fuel Cells, Energy Storage Systems for Space Applications
This talk provides an introduction to fuel cells and regenerative fuel cell systems. It also highlights the features of this technology for enabling future NASA missions to the moon, near-Earth asteroids and Mars.Read More...
The Long and Storied Path to Human Asteroid Exploration
The Long and Storied Path to Human Asteroid Exploration
Within NASA's new FY2014 budget proposal lies a project known as the Asteroid Retrieval and Utilization Mission.Read More...
NASA's Asteroid Initiative Benefits From Rich History
NASA's Asteroid Initiative Benefits From Rich History
NASA's FY2014 budget proposal includes a plan to robotically capture a small near-Earth asteroid and redirect it safely to a stable orbit in the Earth-moon system where astronauts can visit and explore it.Read More...
What Exploded over Russia?
What Exploded over Russia?
"It was a meteor strike--the most powerful since the Tunguska event of 1908," says Bill Cooke of NASA's Meteoroid Environment Office.Read More...
One Close Fly-by: DA14 - What We Learn from NEOs
One Close Fly-by: DA14 - What We Learn from NEOs
On February 15, 2013, asteroid 2012 DA14, a 50-meter stony asteroid, will pass the Earth at a distance of about 27,680 kilometers (17,200 miles).Read More...
Possible Seismic Activity on Asteroid 2012 DA14
Possible Seismic Activity on Asteroid 2012 DA14
For eons, Earth has felt the tremors of asteroids striking our planet. From the extinction of the dinosaurs 65 million years ago to the felled forests around Tunguska in 1908, the space rocks keep coming. This week, Earth strikes back.Read More...
Asteroid DA14 Flyby Toolkit
Asteroid DA14 Flyby Toolkit
Everything you need to know about Friday's historic asteroid flyby.Read More...
50 Years of Robotic Planetary Exploration: Julie Castillo-Rogez, Planetary Geophysicist at the Jet Propulsion Laboratory (JPL)
50 Years of Robotic Planetary Exploration: Julie Castillo-Rogez, Planetary Geophysicist at the Jet Propulsion Laboratory (JPL)
We asked them and here is what the experts had to say about the last 50 years of planetary robotic exploration.Read More...
State of the Solar System
State of the Solar System
As the president prepares to give his annual State of the Union Address, we offer our own update from the ongoing exploration of our cosmic neighborhood.Read More...
Asteroid 2012 DA14 - Earth Flyby Reality Check
Asteroid 2012 DA14 - Earth Flyby Reality Check
Small near-Earth asteroid 2012 DA14 will pass very close to Earth on February 15, so close that it will pass inside the ring of geosynchronous weather and communications satellites.Read More...
Record Setting Asteroid Flyby
Record Setting Asteroid Flyby
On Feb. 15th an asteroid about half the size of a football field will fly past Earth closer than many man-made satellites. Since regular sky surveys began in the 1990s, astronomers have never seen an object so big come so close to our planet.Read More...
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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