Researchers have detected an unexpectedly high abundance of presolar grains — dust from stellar explosions predating our Solar System — in the samples of the near-Earth asteroid (101955) Bennu collected by NASA’s OSIRIS-Rex spacecraft.
Researchers have detected an unexpectedly high abundance of presolar grains — dust from stellar explosions predating our Solar System — in the samples of the near-Earth asteroid (101955) Bennu collected by NASA’s OSIRIS-Rex spacecraft.