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Astrochemistry

The tale of 2 asteroid sample-return missions

OSIRIS-REx and Hayabusa2 are set to collect data that could reveal clues to the origins of life, as well as aid in planetary defense and resource mining

by Cici Zhang
September 30, 2018 | A version of this story appeared in Volume 96, Issue 39
An illustration shows OSIRIS-REx contacting the asteroid Bennu with the Touch-And-Go Sample Acquisition Mechanism, or TAGSAM.

Credit: NASA | OSIRIS-REx, shown here in an artist's rendering, will arrive at the carbon-rich asteroid Bennu in December 2018 and return to Earth in 2023.

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