NASA will host a live news conference to discuss the International Space Station and its crew. On Jan. 7, the agency announced it was postponing a planned spacewalk originally scheduled for Jan. 8 while teams monitored a medical concern with a crew member currently living and working aboard the orbital laboratory. The matter involved a single crew member, who is stable. Participants in the news conference include: - NASA Administrator Jared Isaacman - Amit Kshatriya, associate administrator - Dr. James Polk, chief health and medical officer, NASA Headquarters