Q&A with Tim Ellis, CEO and co-founder of Relativity Space (members only)

Set to resume a brisk pace of launch activity after a nearly six-week respite, SpaceX test-fired its next Falcon 9 rocket Thursday at NASA’s Kennedy Space Center in Florida ahead of a planned liftoff Monday with several tons of experiments and supplies for the International Space Station.

Follow the key events of the Falcon 9 rocket’s ascent to orbit with the third set of 10 next-generation satellites for Iridium’s voice and data relay fleet.

NASA has awarded SpaceX a $109 million contract to launch the Interstellar Mapping and Acceleration Probe, a NOAA space weather observatory, a robotic scout to map water on the moon, and two other ridealong payloads on a single Falcon 9 rocket from Cape Canaveral in 2024.