Q&A with Keith Gendreau, principal investigator of the first X-ray space communications experiment (members only)

Using a Falcon 9 booster flying for a record ninth time, SpaceX’s swift sequence of launches continued Sunday with a predawn liftoff from the Kennedy Space Center carrying another set of 60 Starlink internet satellites, the company’s third mission in 10 days.

SpaceX’s next Falcon 9 rocket rolled out of its hangar and up the ramp to launch pad 39A Sunday in preparation for liftoff on a two-day trek ferrying more than 6,400 pounds of supplies and experiments to the International Space Station.

SpaceX launched a batch of Starlink internet satellites from California on Tuesday after four earlier tries were scrubbed. Liftoff of the Starlink 7-11 mission occurred at 4:35 p.m. PST (7:35 p.m. EST, 0035 UTC).