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Asteroid Watch

Image depicts the primary landing site on comet 67P/Churyumov-Gerasimenko

Rosetta to Deploy Lander on November 12


The European Space Agency's Rosetta mission will deploy its lander, Philae, to the surface of comet 67P/Churyumov-Gerasimenko on Nov. 12.


› Read more (September 26, 2014)


Recent News


Artist concept of NASA's Dawn spacecraft orbiting Ceres during an upcoming flyby. Dawn Operating Normally After Safe Mode Triggered

The Dawn spacecraft has resumed normal ion thrusting after the thrusting unexpectedly stopped and the spacecraft entered safe mode on September 11.


Read more (September 16, 2014)


Image depicts the primary landing site on comet 67P/Churyumov-Gerasimenko 'J' Marks the Spot for Rosetta's Lander

The European Space Agency's Rosetta mission has chosen the primary and backup cometary landing sites for its November landing attempt.


Read more (September 15, 2014)


Distinct Terrains on Rosetta's Comet First Map of Rosetta's Comet

Scientists on the Rosetta mission have mapped several distinctive regions on the nucleus of comet 67P/Churyumov-Gerasimenko.


Read more (September 11, 2014)



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Next Five Close Approaches



Average distance between Earth and the moon is about 239,000 miles (385,000 kilometers).

The Asteroid Watch Widget tracks asteroids and comets that will make relatively close approaches to Earth. The Widget displays the date of closest approach, approximate object diameter, relative size and distance from Earth for each encounter. The object's name is displayed by hovering over its encounter date. Clicking on the encounter date will display a Web page with details about that object.

The Widget displays the next five Earth approaches to within 4.6 million miles (7.5 million kilometers or 19.5 times the distance to the moon); an object larger than about 150 meters that can approach the Earth to within this distance is termed a potentially hazardous object.

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Archived Ustream Events

› NASA Follows 2012 DA14 Asteroid Flyby 02.15.13

› Asteroid 2012 DA14 Flyby Preview (teleconference) 02.07.13

› The Truth About 2012 - 12.08.11

› 2005 YU55 Q & A - 11.01.11

Featured Multimedia

The Rosetta Mission Asks: What Can We Learn From Comets? The Rosetta Mission Asks: What Can We Learn From Comets?

The Rosetta mission will give us an unprecedented look inside a comet, watching the icy traveler become active as it nears the sun.


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Yeomans' Top 10

Don Yeomans Asteroid attack, mini-me, rich neighbors and more. Learn why these are cool asteroid factoids from JPL senior research scientist Don Yeomans.

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In-depth Information

› Near Earth Objects site for technical data

› Small Worlds