SpaceX

Two NASA astronauts have arrived at the International Space Station, 19 hours after launching from Kennedy Space Center in Florida on Saturday. NASA astronauts Doug Hurley and Bob Behnken made the trip on a private space vehicle designed, built and launched by SpaceX.

SpaceX's Crew Dragon capsule docked with the station at 10:17 a.m. ET while flying over the border of northern China and Mongolia.

Updated at 8:40 p.m. ET

SpaceX has launched NASA's planet-hunting satellite TESS into outer space Wednesday evening from Cape Canaveral.

Tess — short for Transiting Exoplanet Survey Satellite — will spend two years searching for planets near bright, nearby stars. The satellite was launched on a SpaceX Falcon 9 rocket.

The launch window was narrow — just 30 seconds — and TESS was to be deployed into orbit about 48 minutes after launch.

SpaceX's Falcon 9 rocket successfully launched a top secret U.S. government payload into orbit, while returning its first-stage booster to the ground for reuse.

The Falcon lifted off at 8 p.m. ET Sunday from Cape Canaveral Air Force Station. As the first-stage of the Falcon returned to Earth for an upright landing, the upper stage lofted the mysterious Zuma, presumed to be a spy satellite or military communications satellite, into an undisclosed orbit.