mini moon

It's officially known as 2020 CD3, but this baby object is only the second asteroid known to orbit Earth. It's expected to drop out of Earth orbit around April and return to a heliocentric orbit.

Supermassive Black Holes going kaboom, tiny asteroids hitching a ride in Earth's orbit and a helper satellite giving life-extending boosts to ailing satellites. Plus SpaceX dominating our headlines, on today's Talkin' Science...