Space.com Astronauts Take 200th Space Station Spacewalk Today: Watch It Live 12 May 2017 fborgosano Leave a comment Share: Two NASA astronauts will embark on the International Space Station’s milestone 200th spacewalk this morning (May 12), when they will spend 6.5 hours upgrading and maintaining tools and experiments outside the orbiting lab. from Space.com bit.ly/2prXWXl Share: