Snapshots from Atlas 5 launch

United Launch Alliance chief executive Tory Bruno said Thursday the company will offer more rides for CubeSats aboard future Atlas 5 rocket flights, and give some away for free, in a bid to tap into a growing market of small satellites with applications in education, scientific research and commercial business.

NASA’s Perseverance rover has been closed up inside its protective aeroshell, the structure that will protect the spacecraft when it plunges into the Martian atmosphere, in preparation for launch no earlier than July 20 from Cape Canaveral.

Mission leaders Tuesday gave approval for rollout of the United Launch Alliance Atlas 5 rocket to its pad on Wednesday morning, leading to liftoff Thursday evening of a NASA probe to rendezvous with an asteroid and bring a sample back to Earth.