Live coverage of the countdown and launch of an International Launch Services Proton rocket with the Yamal 401 communications satellite for Gazprom Space Systems. Text updates will appear automatically below; there is no need to reload the page. Follow us on Twitter.
Delta 4
Live coverage: Delta 4-Heavy launch scrubbed again
United Launch Alliance called off the planned liftoff of a Delta 4-Heavy rocket and a classified National Reconnaissance Office spy satellite from Vandenberg Air Force Base in California on Wednesday after indications of elevated hydrogen concentrations around one of the launcher’s main engines. Three previous launch attempts were scrubbed by technical concerns and bad weather.
Falcon 9
Live coverage: SpaceX conducts third Falcon 9 launch of the month
SpaceX launched a Korean communications satellite from Florida on Monday aboard the company’s third Falcon 9 rocket flight of the month. Liftoff from NASA’s Kennedy Space Center occurred at 3:34 p.m. EDT (1934 GMT), and the Falcon 9’s first stage landed on a floating barge in the Atlantic Ocean a few minutes later.
Mission Reports
Live coverage: Japanese and South Korean satellites launch on Ariane 5 rocket
A European-built Ariane 5 rocket launched Tuesday with a U.S.-made communications satellite for Tokyo-based Sky Perfect JSAT and a South Korean environmental observatory. The heavy-lift Ariane 5 launcher took off from the Guiana Space Center in Kourou, French Guiana, at 5:18 p.m. EST (2218 GMT; 7:18 p.m. French Guiana time).