Asteroid & Comet Missions
Latest about Asteroid & Comet Missions

What if NASA's OSIRIS-REx asteroid-sample capsule crashes to Earth this weekend?
By Elizabeth Howell published
The descent capsule of NASA's OSIRIS-REx asteroid-sampling mission is supposed to touch down softly under parachutes on Sept. 24. If it crashes, however, the agency has a backup plan.

How asteroid Bennu caught NASA's OSIRIS-REx spacecraft by surprise and nearly killed it along the way
By Tereza Pultarova published
When the OSIRIS-REx probe arrived at asteroid Bennu, it found a body that looked and behaved quite differently from what scientists had expected.
NASA's Lucy asteroid-hopping probe captures 1st snapshot of space rock 'Dinky' (photo)
By Sharmila Kuthunur published
NASA's Lucy spacecraft just sent home an impressive glimpse of the smallest asteroid target on its 12-year agenda to study intriguing space rocks.

OSIRIS-REx asteroid probe heads toward Earth for Sept. 24 sample delivery
By Mike Wall published
NASA's OSIRIS-REx probe put itself on course toward Earth with a thruster firing on Sept. 10, two weeks before its highly anticipated asteroid-sample delivery.

OSIRIS-REx's Dante Lauretta shares final preparations for Sept. 24 asteroid-sample return
By Leonard David published
NASA's OSIRIS-REx mission will see a sample of an asteroid return to Earth on Sept. 24. Here's how the mission's head scientist feels about the chances of success.

SpaceX launch of NASA's Psyche mission to bizarre metal asteroid just 1 month away
By Mike Wall published
NASA's Psyche mission is scheduled to launch atop a SpaceX Falcon Heavy rocket on Oct. 5 and begin heading toward its metal-asteroid namesake.

Europe assembles Hera spacecraft to eye aftermath of DART asteroid crash (video, photos)
By Andrew Jones published
The European Space Agency's Hera spacecraft is now assembled ahead of its journey to analyze the asteroid smashed by NASA's DART mission.

NASA's OSIRIS-REx mission almost bit the dust — then Queen guitarist Brian May stepped in
By Ben Turner published
The OSIRIS-REx spacecraft will soon return to Earth. What's on board could reveal the extraterrestrial origins of life on Earth.

NASA conducts crucial drop test ahead of Sept. 24 arrival of OSIRIS-REx asteroid sample
By Mike Wall published
The OSIRIS-REx team performed a crucial drop test on Wednesday (Aug. 30), practicing what they'll do when the mission's real asteroid sample comes home on Sept. 24.
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