NASA has postponed a planned Jan. 8 spacewalk outside the International Space Station due to a "medical concern" with an unnamed crew member.

NASA postpones spacewalk due to 'medical concern' with an astronaut

Source: space
Source Link: https://www.space.com/space-exploration/international-space-station/watch-astronaut-mike-fincke-tie-nasa-spacewalking-record-on-jan-8