As the days count down to NASA's OSIRIS-REx spacecraft's Touch-And-Go asteroid sample collection attempt, scientists have determined what the spacecraft can expect to return from the near-Earth asteroid Bennu's surface. Three papers discuss the color, reflectivity, age, composition, origin and distribution of materials that make up the asteroid's rough surface.
from Latest Science News -- ScienceDaily https://ift.tt/34H3VJg
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