Live coverage of the countdown and launch of a Falcon 9 rocket and Dragon spacecraft on a resupply mission to the International Space Station. Text updates will appear automatically below; there is no need to reload the page. Follow us on Twitter.
Mission Reports
Live coverage: Vega rocket deploys second Sentinel satellite
Falcon 9
SpaceX points to leaky valve as culprit in Crew Dragon test accident
Investigators believe a leak of propellant inside the Crew Dragon spacecraft’s propulsion system led to the capsule’s explosion April 20 during a ground test at Cape Canaveral, and a senior SpaceX official said Monday that delays are making it “increasingly difficult” to fly astronauts on the commercial spaceship before the end of the year.
Atlas 5
Live coverage: Atlas 5 rocket lifts off from Cape Canaveral
A United Launch Alliance Atlas 5 rocket lifted off from Cape Canaveral at 4:18 p.m. EDT (2018 GMT), following a delay of more than an hour to troubleshoot a ground hydraulics controller. The Atlas 5 launched with the U.S. military’s sixth Advanced Extremely High Frequency strategic communications satellite.