NASA expects package with piece of asteroid Bennu on Sunday: Why this space rock? And what is the purpose? 5 questions answered

Sunday is a big day for the American space agency. NASA expects a package containing 250 grams of material from the asteroid Bennu. Their space probe OSIRIS-REx collected this in 2020. Now, 3 years later, OSIRIS-REx will shoot this sample to Earth in a capsule as it flies past. A first for the Americans and also the largest sample of a space rock ever brought to Earth.

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