Live coverage of the countdown and launch of a Proton rocket with the AsiaSat 9 communications satellite. Text updates will appear automatically below. Follow us on Twitter.
Live video from ILS begins at approximately 1830 GMT (2:30 p.m. EDT).
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Soyuz commander Alexei Ovchinin, flight engineer Oleg Skripochka and outgoing space station skipper Jeff Williams returned to Earth on Tuesday with a parachute-assisted touchdown in Kazakhstan. Their Soyuz TMA-20M capsule undocked from the station at 2151 GMT (5:51 p.m. EDT) and landed at 0113 GMT (9:13 p.m. EDT).