Why NASA is bringing some of this asteroid back to Earth
2:21pm PDT - October 20th, 2020 after we collided - MashableAsteroid Bennu is ready for its close-up. On Tuesday, at around 6:12 pm, NASA’s OSIRIS-REx spacecraft will attempt to take a tiny piece of Bennu to return to Earth, a process that will take just 16 seconds. (You can watch a livestream of the event here.) Mis…