Touchdown.
Earlier in October, NASA successfully collected rocky samples from asteroid Bennu, a relatively small, well-preserved space rock some 200 million miles from Earth. On Friday, NASA released footage of the spacecraft, OSIRIS-REx, approaching and briefly touching down on the rubbly Bennu. The events, seen in the space agency’s tweet below, show OSIRIS-REx carefully descending to Bennu’s rock-strewn surface.
The spacecraft collected over 60 grams, or about two ounces, of fine-grained material during the quick touchdown, which lasted under 16 seconds. To planetary scientists, this asteroidal stuff is invaluable: Bennu hasn’t changed much since the formation of our solar system (4.5 billion years ago), so the samples provide a glimpse into our past, and how our planets formed. Read more…
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Source : Watch a NASA spacecraft touch down on asteroid Bennu
