Photos: More Launch shots of Delta 375 rocket

The Space Force says it changed the nickname of a GPS navigation satellite launched in June from Columbus to instead honor Matthew Henson, a Black explorer on the first expedition to the North Pole more than a century ago, “to acknowledge a fuller history of courageous explorers and pioneers.” The military’s next GPS navigation satellite, set for launch Friday night, is nicknamed Sacagawea.

NASA simulated an in-flight launch abort of an Orion crew capsule high above Cape Canaveral on Tuesday, in a major test of the safety system that would whisk astronauts on future moon missions away from a failing rocket.

Relativity Space, a small launch startup aiming to fly its orbital rocket from Cape Canaveral for the first time next year, announced Wednesday it has signed a contract with Iridium for up to six launches of the company’s spare communications satellites. Relativity also announced it plans to develop a second launch pad at Vandenberg Air Force Base in California to allow for missions to polar orbits.