Watch two astronauts swap out batteries on the outside of the space station today

This morning, NASA astronauts Peggy Whitson and Shane Kimbrough will take a stroll outside of the International Space Station to help upgrade the orbiting lab’s power systems. Specifically, the duo are going to help swap out the old nickel-hydrogen batteries the ISS has been using with new, more efficient lithium-ion batteries. The duo are veterans of […]