NASA astronauts Scott Kelly and Kjell Lindgren ended their spacewalk at 3:19 p.m. EDT with the repressurization of the U.S. Quest airlock, having completed most of the major tasks planned for their excursion outside the International Space Station. Kelly and Lindgren applied a thermal cover on the Alpha Magnetic Spectrometer; applied grease to a number …
NASA Astronauts Complete Their First Spacewalk
