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

Leaving crewmate Peggy Whitson behind in orbit for an extended mission, a Russian cosmonaut and his French co-pilot undocked from the International Space Station early Friday and plunged back to Earth, landing on the steppe of Kazakhstan to close out a 196-day mission.

Three crewmen from Russia, the United States and Great Britain blasted off toward the International Space Station on Tuesday, rocketing into space from the Baikonur Cosmodrome in pursuit of the orbiting research lab.

The next Cygnus resupply mission to the International Space Station set for liftoff Wednesday from Virginia’s Eastern Shore will introduce new capabilities for the commercial cargo freighter, including a longer operating life enabled by fuel-saving gyroscopes to support an extended mission months after the spacecraft departs the International Space Station, Northrop Grumman officials said.