On Dec. 3, the NASA spacecraft OSIRIS-REx arrived at its destination of the near-Earth asteroid Bennu. During the next year, it will orbit the asteroid to search for the best places to land and scoop up samples before eventually returning them to Earth in 2023.
Why it matters: Analyzing Bennu may help scientists learn more about the asteroid's composition, which could lead to new discoveries about how life evolved in the universe.
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