Live coverage: Launch of Delta 4-Heavy aborted seconds before liftoff

After receiving more than $150 million in U.S. military funding to design and develop a reusable winged spaceplane named Phantom Express, Boeing said Wednesday it is ending its work on the vehicle, effectively killing a program military officials hoped would offer regular, reduced-cost launch opportunities for small satellites.

Poised to embark on a 7-year adventure to Asteroid Bennu and back, NASA’s OSIRIS-REx sample return spacecraft was moved to the launch pad today aboard its Atlas 5 rocket for liftoff Thursday evening.

A Northrop Grumman Antares rocket rolled out of its hangar Monday night, riding a self-propelled transporter for a mile-long trip to launch pad 0A on Wallops Island, Virginia, for a predawn liftoff Thursday with a Cygnus supply ship heading for the International Space Station.