Photos: Atlas 5 rocket aims for International Space Station

Arianespace has split its third order of Vega rockets from Italy’s Avio between old and new versions of the solid-fueled booster, as officials prepare to build a final batch of around 18 Ariane 5 rockets before switching to the next-generation Ariane 6 in the early 2020s.

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.

The planned liftoff Thursday of an Indian Geosynchronous Satellite Launch Vehicle with a geostationary Earth-imaging satellite has been postponed due to technical reasons, India’s space agency announced.