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

Flying with a reused first stage and a recycled Dragon supply ship, a SpaceX Falcon 9 rocket lifted off from Cape Canaveral on Friday bound for the International Space Station on an unpiloted cargo delivery mission.

Follow the key events of the Soyuz rocket’s ascent into orbit from the Guiana Space Center with the SES 15 communications satellite.

Watch a time lapse replay of SpaceX’s next Falcon 9 rocket being raised vertical Thursday at launch pad 39A at NASA’s Kennedy Space Center in Florida for a mock countdown and engine test, ahead of a scheduled liftoff this weekend with an Intelsat communications satellite.