Why NASA is bringing some of this asteroid back to Earth
Asteroid 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.) Mission development started over a decade ago, and it’s already...
