Snapshots from Atlas 5 launch

SpaceX’s first Crew Dragon spacecraft wrapped up its five-day stay at the International Space Station at 2:31 a.m. EST (0731 GMT) Friday with a smooth undocking, then nailed an on-target splashdown in the Atlantic Ocean east of Florida at 8:45 a.m. EST (1345 GMT).

Work to create a new all-American rocket, the United Launch Alliance Vulcan-Centaur, has passed its first major hurdle for its first flight in three years, officials announced Thursday.

The second flight of NASA’s Ingenuity helicopter in the Martian atmosphere Thursday took the rotorcraft higher than its first hop. A third takeoff as soon as Sunday will take the helicopter more than 150 feet away from its makeshift airfield as engineers attempt more daring test flights.