On July 21, NASA astronauts Chris Cassidy and Robert Behnken will conduct a spacewalk to finish a 3.5-year effort to upgrade the International Space Station’s power system. This EVA live begins at 7:00 a.m. Coverage will begin around 7:35 a.m. (EDT), and could last up to seven hours. Cassidy and Behnken will replace aging nickel-hydrogen batteries with new lithium-ion batteries delivered to the station on a Japanese cargo ship in May. During this spacewalk, the last nickel-hydrogen battery will be removed from the truss and stowed.
William Mahe (WM), books and news author, passionate about the Universe, Science and technologies, university graduate from the Paris - Meudon Observatory in Astronomy and Celestial Mechanic. President of the SPETspace STEAM Society and Publishing Director of the SPETspace News. He is also a Harley Davidson and Honda motorcycles lover.