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

Blaming a technical glitch encountered during a preflight test, officials said Thursday the launch of SpaceX’s next Dragon cargo capsule to the International Space Station has been delayed to early January.

Four commercial space fliers who launched from NASA’s Kennedy Space Center on Axiom’s second private astronaut mission Sunday arrived at the International Space Station on a SpaceX crew capsule Monday to start an eight-day stay full of scientific experiments, student outreach events, and sightseeing.

United Launch Alliance crews at Cape Canaveral are finishing final preparations for an Atlas 5 rocket launch Saturday evening to dispatch three U.S. military satellites directly to an orbital perch more than 20,000 miles over the equator.