Live coverage: ExoMars orbiter steers into orbit around Mars, lander’s fate TBD

An 11-hour practice countdown was completed Friday at Cape Canaveral’s launch complex 41 for the planned launch of an Atlas 5 rocket and Boeing’s Starliner capsule later this month. The rocket was loaded with super-cold liquid oxygen and liquid hydrogen in a full dress rehearsal for launch day.

The last bits of data collected during NASA’s New Horizons spacecraft’s speedy flyby of Pluto last year are back on Earth, scientists said Thursday, marking the official end of the probe’s prime mission.

Running several days late after a series of technical and weather delays, a Falcon 9 rocket lifted off from Vandenberg Air Force Base in California at 6:17 a.m. PST (9:17 a.m. EST; 1417 GMT) with the Spanish-owned Paz radar observation satellite and two prototype payloads for SpaceX’s planned Starlink broadband satellite network.