Russia's state-owned Rosatom announced a prototype plasma engine which could speed up travel to other planets.

SpaceX crews are preparing to launch a Falcon 9 rocket Tuesday from Florida’s Space Coast. The launch is set for 1:53 p.m.

The maneuver was last pulled off during the fifth flight test on Oct. 13 as it was called off during the Nov. 19 liftoff. Musk later revealed that "improved versions" of both the rocket and ...