Video: Falcon 9 rocket test-fired at pad 39A (members only)

On track for launch from Cape Canaveral in July, NASA’s Perseverance rover has been secured to its rocket-powered descent stage and back shell, part of the protective shield that will safeguard the robot when it arrives at Mars next year.

An unpiloted demonstration flight of Boeing’s Starliner crew capsule ended prematurely Sunday with a smooth airbag-cushioned predawn landing in New Mexico after a timing glitch prevented it from docking with the International Space Station, leaving some test objectives incomplete as NASA begins analyzing data to determine if astronauts should fly on the next Starliner mission.

A classified satellite code-named Zuma, launched Sunday night atop a SpaceX Falcon 9 rocket, may have suffered a mission-ending failure during or shortly after the climb to space, according to news accounts Monday evening.