Mark Van Hei

NASA astronauts begin the second of three spacewalks to repair ISS

Save the date! Second of three spacewalks for ISS maintenance to take place on October 10

NASA astronauts complete first of three spacewalks, robot arm repair successful

NASA astronauts begin first of three spacewalks to repair ISS

Standby: First of spacewalk series on October 5, ISS astronaut shares what they'll be working on - See pic