NASA had planned to hold its next spacewalk at the end of July, but now that's off the schedule. An investigation continues after a June 24 coolant leak during a spacewalk.

NASA suspended all ISS spacewalks with its spacesuit indefinitely after agency astronaut Tracy Dyson experienced a brief coolant leak June 24 before leaving the hatch of the space station.

Two spacewalking astronauts teamed for the second of four planned spacewalks outside the ISS on Nov. 22 to advance an upgrade of the thermal control system on the Alpha Magnetic Spectrometer.