The two astronauts at the ISS today performed a four and a half hour spacewalk to install a radio antenna and to manually launch a small science satellite.
Russia's mission control center in Korolyov, near Moscow, said the pair left the ISS at 1:25 a.m. ET and returned at 5:55 a.m. ET, an hour and a half earlier than planned because "they worked faster than expected," mission control spokesman Valery Lyndin.
The antenna will be used to dock a European-made supply vessel next year and the small Russian satellite will orbit Earth for three months.