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

SpaceX’s Falcon 9 rocket is set for liftoff from Cape Canaveral on Monday, heading due east over the Atlantic Ocean to deliver the Telstar 19 VANTAGE communications satellite into orbit around 32 minutes later.

U.S. spacewalk 94 was slated to have NASA astronauts Mike Fincke and Zena Cardman perform a variety of operations around the orbiting outpost during the roughly 6.5-hour-long event. A new date for the spacewalk hasn’t been announced.

In the week since it departed the International Space Station to wrap up a successful cargo delivery mission, Orbital ATK’s Cygnus supply ship hosted a combustion research experiment, deployed four small satellites for a San Francisco-based startup, then descended into Earth’s atmosphere Sunday for a destructive re-entry.