NASA astronauts Sunita "Suni" Williams and Barry "Butch" Wilmore have been on the International Space Station for more than eight months, even though they initially expected to stay for just about eight days.

The Crew 10 Dragon capsule caught up with the International Space Station and moved in for a textbook docking early Sunday, bringing four fresh crew members to the lab and clearing the way for the Starliner astronauts to return to Earth after nearly 300 days in space.