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

A Russian military communications satellite rode a Soyuz rocket and Fregat upper stage Thursday into an orbit stretching nearly 25,000 miles (40,000 kilometers) above Earth, successfully launching after a one-month delay to replace a suspect third stage on the Soyuz booster.

A three-man crew closed out a 196-day expedition in orbit late Wednesday with a parachute-assisted landing on the steppe of Kazakhstan aboard the Russian Soyuz MS-17 spacecraft. NASA astronaut Chris Cassidy, Soyuz commander Anatoly Ivanishin, and flight engineer Ivan Vagner undocked from the International Space Station at 7:32 p.m. EDT (2332 GMT) Wednesday, and the trio landed at 10:54 p.m. EDT (0254 GMT).

The Starlink 6-96 mission added another 29 broadband internet satellites to the low Earth orbit constellation. SpaceX launched from Space Launch Complex 40 on Friday, Jan. 9, at 4:41 p.m. EST (2141 UTC).