Live coverage: SpaceX Falcon Heavy launches NASA’s Psyche on mission to a metal asteroid

Mimi Aung leads a cadre of engineers developing the Mars Helicopter, an aerial drone set to fly to the Red Planet with the Mars 2020 rover.

United Launch Alliance moved its next Atlas 5 rocket off its Florida launch pad Wednesday for inspections after a cooling duct unexpectedly disconnected before a planned countdown rehearsal to prepare for liftoff next month with the joint U.S.-European Solar Orbiter mission. The roll back to the Vertical Integration Facility at Cape Canaveral’s Complex 41 launch pad could delay Solar Orbiter’s liftoff, which was scheduled for Feb. 5

Packed with an array of experiments and provisions, including a custom-made Italian espresso maker, SpaceX’s unmanned Dragon cargo capsule reached the International Space Station on Friday after a precise laser-guided rendezvous more than 250 miles above Earth.