All eyes however will be on astronauts Butch Wilmore and Suni Williams who have been stuck aboard the ISS since June after their Boeing Starliner spacecraft developed propulsion issues and was deemed unfit for their return.
The pair, initially slated for an eight-day mission, were reassigned to Crew-9 after its astronauts arrived in September aboard a SpaceX Dragon. The spacecraft carried only two crew members instead of the usual four to make room for Wilmore and Williams. Crew-9 will remain in orbit until Crew-10 arrives.
"We came up prepared to stay long, even though we plan to stay short," Wilmore said in a recent news conference. "That's what your nation's human space flight program is all about, planning for unknown, unexpected contingencies."