NASAのインスタグラム(nasagoddard) - 10月20日 07時29分

Take a tour of this fascinating asteroid that could help unlock the secrets of the solar system's formation. 🤯

OSIRIS-REx has spent almost two years circling near-Earth asteroid Bennu. Tomorrow, it swoops in to scoop up a sample. But Bennu has turned out to be more complicated than we expected. Thanks to laser altimetry data and high-resolution imagery from OSIRIS-REx, we can take a tour of Bennu’s remarkable terrain.

When NASA's OSIRIS-REx asteroid sample return mission arrived at asteroid Bennu in December 2018, its close-up images confirmed what mission planners had predicted nearly two decades before: Bennu is made of loose material weakly clumped together by gravity, and shaped like a spinning top.

Scientists had expected Bennu’s surface to consist of fine-grained material like a sandy beach, but were instead greeted by a rugged world littered with boulders — the size of cars, the size of houses, the size of football fields.

For the full-length video and to read more about the mission, follow the link in our bio.

Credit: NASA's Goddard Space Flight Center; data provided by NASA/University of Arizona/CSA/York University/Open University/MDA

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