Photos: Atlas 5 launches EchoStar 19 broadband satellite

SpaceX’s next Falcon Heavy mission, set for April 18 from NASA’s Kennedy Space Center in Florida, will launch a powerhouse bus-sized broadband satellite for Viasat into a high-altitude circular geostationary orbit, a demanding flight profile that will require disposal of all three of the rocket’s reusable boosters.

A commercial Falcon 9 rocket in the final stages of launch preparations fired its nine Merlin main engines Saturday at Vandenberg Air Force Base in California, verifying its readiness for liftoff with a Taiwanese Earth-imaging payload Thursday.

Rocket Lab’s next launch from New Zealand is set for no earlier than June 27 with a bundle of spacecraft including a commercial Earth-observing microsatellite for BlackSky, two CubeSats for U.S. Special Operations Command, a pair of tiny prototype data relay nodes for Swarm Technologies, a student-built payload from Australia, and a satellite whose identity and owner remain a secret.