Live coverage: Atlas 5 countdown and launch journal

A Falcon 9 rocket fired into a late-night sky Friday night over Cape Canaveral with a Dragon supply ship bound for the International Space Station. Eight minutes later, the booster returned to Florida’s Space Coast for SpaceX’s 50th landing of a Falcon first stage.

A robotic U.S. military spaceplane surpassed 719 days in orbit Monday, setting a new record for the longest flight of the Air Force’s winged X-37B orbiting experiment platform nearly two years after launching from Florida on a SpaceX Falcon 9 rocket.

Arianespace’s third Ariane 5 launch of the year was set liftoff Friday from Kourou, French Guiana, but an issue with a sensor on the rocket’s first stage liquid hydrogen tank caused officials to scrub the launch attempt. The Ariane 5 is poised to carry three U.S.-built commercial satellites into orbit, while testing a few rocket upgrades, including a modified fairing needed for the launch of the James Webb Space Telescope next year.