Live coverage: SpaceX launches another batch of Starlink satellites

A communications satellite developed in a public-private partnership between Luxembourg government and SES is set for launch Tuesday aboard a previously-flown SpaceX Falcon 9 booster from Cape Canaveral, ready for a 15-year mission beaming encrypted, jam-resistant signals for security and military forces across Europe, Africa and the Middle East.

If confirmed, Isaacman, 41, would be the fifth NASA administrator with spaceflight experience, replacing former Democratic Sen. Bill Nelson, who flew into orbit aboard the space shuttle Columbia in early 1986.

The U.S. Air Force on Thursday demolished towers once used to assemble Delta 2 rockets at Cape Canaveral for missions to Mars, four dozen flights to deploy the GPS navigation network, and numerous launches with scientific, commercial and military payloads.