Live coverage: Delta 2 launches

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’s tenth launch of the year took off Tuesday from California’s Central Coast on a unique ridehsare mission to add satellites to Iridium’s communications network and replace two Earth science satellites which ended their observations last year.

Making a fiery climb into a foggy sky Saturday over California’s Central Coast, a United Launch Alliance Atlas 5 rocket dispatched NASA’s InSight lander on a 301-million-mile voyage to Mars with a package of European-built instruments to probe the inside of the Red Planet.