Q&A with Andrew Driesman, project manager for Parker Solar Probe (members only)

Watch a video replay of Monday night’s hotfire of a SpaceX Falcon 9 rocket at NASA’s Kennedy Space Center in Florida. The rocket is set for launch Thursday with Qatar’s Es’hail 2 communications satellite.

The 15th resupply mission to the International Space Station by a Cygnus cargo freighter lifted off at 12:36 p.m. EST (1736 GMT) Saturday aboard an Antares rocket from Wallops Island, Virginia. The Northrop Grumman-owned spacecraft is carrying more than 8,000 pounds of experiments and provisions for the space station and its seven-person crew. Capture by the station’s robotic arm occurred at 4:38 a.m. EST (0938 GMT) Monday.

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.