NASA astronaut Jeff Williams and Russian cosmonauts Oleg Skriprochka and Alexey Ovchinin finish their training in Star City in preparation for launch aboard the Soyuz TMA-20M spacecraft from the Baikonur Cosmodrome to the International Space Station on March 18.
Antares Launcher
Antares launch timeline on the NG-15 mission
Mission Reports
Spacewalkers complete another round of solar array battery replacements
It took NASA more than 50 years to stage its first all-female spacewalk last October. It took three months before the second on Jan. 15 and just five days more for the third on Monday, a successful six-hour 58-minute excursion to finish installing a set of new solar array batteries aboard the International Space Station.