Live coverage: Soyuz crew lands in Kazakhstan

Two cosmonauts and a NASA astronaut undocked from the International Space Station and plunged back to Earth early Saturday, landing on the steppe of Kazakhstan amid preparations in Florida for launch of another station-bound crew Thursday aboard a SpaceX Crew Dragon spacecraft.

An Ariane 5 rocket launched Tuesday with the Arabsat 6B and GSAT 15 communications satellites to broadcast television across the Middle East, North Africa and Central Asia and link India with telecom and navigation services. Liftoff from Kourou, French Guiana, occurred at 2134 GMT (4:34 p.m. EST).

The towering structure to be used for liftoffs of NASA’s Space Launch System rolled from a construction site to launch pad 39B at the Kennedy Space Center in Florida this week, arriving at the seaside complex Friday for a week of fit checks.