Photos: Atlas 5 powers away with NROL-61 payload

The flight of a United Launch Alliance Delta 4-Heavy rocket set for Aug. 26 from Cape Canaveral continues the Delta rocket family’s countdown to retirement. With five Delta 4-Heavy missions left to launch, ULA’s chief executive Tory Bruno says there are no plans to build more as the company transitions to the next-generation Vulcan Centaur rocket.

SpaceX launched 60 more Starlink internet relay platforms into orbit Sunday as the company ramps up network testing in Washington state and touts a streak of nearly 300 satellites launched since June without a spacecraft failure.

After a year-long delay to troubleshoot recurring erroneous data signatures from the rudder of Northrop Grumman’s air-launched Pegasus XL rocket, NASA is eager to send a $252 million research satellite into orbit as soon as Thursday night off Florida’s east coast on a mission to probe the ionosphere, a region near the boundary between Earth’s atmosphere and space.