NASA astronauts Matthew Dominick, Michael Barratt and Jeanette Epps and Russian cosmonaut Alexander Grebenkin departed the space station at 5:05 p.m. ET, undocking from the orbiting outpost in ...
The space agency defied incredible odds to get its asteroid-hunting OSIRIS-REx spacecraft off the ground. Since then, the mission has upended everything we know about our solar system.