NASA: We're going on a spacewalk! ?‍??‍?

Tracy C. Dyson and Mike Barratt will step outside the @Space_Station at about 8am ET (1200 UTC) on a six-and-a-half hour trip to retrieve hardware and collect samples. Watch live with us now at NASA+: https://plus.nasa.gov/scheduled-video/international-space-station-u-s-spacewalk-90/