A diamond-shaped grey asteroid with ridges, holes, and craters in it, against a black background

Solar System

Don’t Worry About Bennu (Yet)

Careful measurements using the OSIRIS-REX spacecraft have refined astronomers’ predictions for how likely it is that this potentially hazardous asteroid will strike Earth.

osiris-rex departs

Solar System

NASA's OSIRIS-REX Leaves Asteroid Bennu, Heads for Home

NASA’s asteroid explorer has begun its long journey home with precious cargo onboard: samples of the asteroid Bennu.

Astronomy in Space with David Dickinson

NASA's Osiris-REX Has Stowed Its Bite Out of Asteroid Bennu

NASA’s Osiris-REX successfully stowed its sample of Bennu's regolith, collected earlier this week. Images show a good haul.

bennu activity

Spacecraft and Space Missions

Asteroid Bennu’s Activity Still a Mystery

The near-Earth asteroid constantly shoots out rocks, leaving planetary scientists perplexed.

Asteroid Bennu

Solar System

Bumpy Road Ahead For NASA’s Osiris-REX

Asteroid Bennu is turning out to be a hazardous place for the NASA spacecraft to sample: It has uneven, rugged terrain and occasionally even hurls rocks into space.

Image of Bennu

Spacecraft and Space Missions

Osiris-REX Finds Hints of Past Water on Asteroid Bennu

The NASA spacecraft detected signs of hydrated minerals on Bennu's surface, suggesting that the asteroid's larger parent body once hosted liquid water.

Bennu

Astronomy in Space with David Dickinson

Osiris-REX Arrives at Asteroid Bennu

NASA's ambitious Osiris-REX mission will now spend the next couple years surveying Bennu before attempting to return a sample to Earth.

Asteroid Bennu

Solar System

Osiris-REX's First Views of Asteroid Bennu

NASA's Osiris-REX asteroid sample return mission spies target Bennu for the first time. Now the spacecraft is setting up for its close approach in December.

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