Ancient asteroids are covered with popcorning pebbles, new study finds - Livescience.com

  • Stephanie Pappas |
  • Technology |
  • Live Science |
  • 08-15-2022 |
  • 101

In 2019, when NASA's OSIRIS-REx spacecraft approached the asteroid Bennu, scientists saw something stunning in the images beamed back to Earth . The surface of the space rock wasn't calm — instead,

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