Photos: Delta 2 rocket blasts off with SMAP satellite

All systems are now “go” for launch of the Air Force’s X-37B mystery spaceplane on May 20 from Cape Canaveral aboard an Atlas 5 rocket.

Leaving six crewmates behind in orbit, a Russian commander, his NASA co-pilot and a first-time flier from the United Arab Emirates undocked from the International Space Station early Thursday, executed a fiery plunge back to Earth and landed safely on the steppe of Kazakhstan.

The Trump administration is requesting $25.2 billion for NASA in fiscal 2021, a 12 percent increase that includes $3.3 billion to kickstart development of a human-rated lander for the Artemis moon program. Nearly half of the budget request, $12.3 billion, is devoted to new and ongoing projects focused on the return to the moon and eventual flights to Mars.