NASA astronauts venture outside of the ISS to swap and check on coolers, 'Leaky' and 'Frosty'

NASA astronauts venture outside of the ISS to swap and check on coolers, 'Leaky' and 'Frosty'
A pair of American astronauts began a spacewalk outside the International Space Station to swap and check on two external cooling boxes, nicknamed 'Leaky' and 'Frosty.'