See live! Astronauts taking spacewalk outside the space station

NASA astronauts Chris Cassidy and Bob Behnknen will leave the International Space Station today (June 26) for a seven-hour spacewalk and can be seen live here, courtesy of NASA TV.

The spacewalk will begin at 7:35 am EDT (1135 GMT) and will last approximately seven hours. During that time, Cassidy and Behnken will begin work to replace the station’s old port nickel-hydrogen batteries with new lithium-ion batteries for the outpost’s solar panels. It is the first of four spacewalks in the coming weeks dedicated to updating the power system.