Snapshots from Atlas 5 launch

The final flight of a Delta 2 rocket, a mainstay of the U.S. launch industry for nearly 30 years, began at 6:02 a.m. PDT (9:02 a.m. EDT; 1302 GMT) from Vandenberg Air Force Base in California with NASA’s ICESat 2 Earth science satellite.

NASA announced Thursday that work on the Space Launch System heavy-lift rocket and Orion crew capsule at facilities in Louisiana and Mississippi is being halted due to the spreading coronavirus pandemic, a stoppage that could force further delays on the already behind-schedule and over-budget programs. Meanwhile, NASA officials are making plans to continue working on the agency’s next Mars rover to keep it on schedule for launch later this year, even if the virus forces further closures.

NASA’s Ionospheric Connection Explorer satellite was scheduled to launch Wednesday aboard an air-dropped Northrop Grumman Pegasus XL rocket over the Atlantic Ocean, but managers aborted the mission after encountering a technical concern with the rocket following departure from Cape Canaveral Air Force Station. The launcher’s L-1011 carrier jet returned to Florida.