Alpha Magnetic Spectrometer

This photo provided by NASA shows the view from NASA's Andrew Morgan's helmet cam as Italian astronaut Luca Parmitano works outside the International Space Station during a spacewalk Saturday.

Science

Astronauts Finish Spacewalk For Final Fix Of International Space Station Device

3:47pm January 25, 2020

by David Welna

Two astronauts aboard the International Space Station made their fourth foray outside the spacecraft to prolong the lifespan of a cosmic ray detector.