Watch the astronauts give a tour of their new Crew Dragon spacecraft

SpaceX is gearing up for launch of an unpiloted Crew Dragon spacecraft from the Kennedy Space Center for a crucial test of the crew capsule’s launch abort system. A modified Falcon 9 rocket performed a test-firing at launch pad 39A Saturday before carrying the Crew Dragon spacecraft into the upper atmosphere for an in-flight abort test scheduled for Jan. 18.

SpaceX and SES, owner of a 5.8-ton commercial telecom satellite poised for launch from Cape Canaveral on Wednesday, struck a deal to tweak the Falcon 9 rocket’s launch profile to give the SES 9 spacecraft a stronger push toward its operating post more than 22,000 miles above Earth.

United Launch Alliance’s first Vulcan rocket was filled with methane and liquid oxygen propellants at Cape Canaveral last week for a tanking test, but managers decided to move the rocket back inside a hangar for a few adjustments before proceeding with an engine test-firing.