India, March 17 -- More than nine months after they were supposed to return, NASA astronauts Sunita Williams and Butch Wilmore are finally set for their long-delayed journey back to Earth. Their unexpected extended mission began last June when they launched aboard Boeing's Starliner capsule, which was meant to be a short one-week test flight. However, technical failures forced NASA to leave the capsule behind and delay their return indefinitely.

Their long wait is coming to an end as a SpaceX crew capsule successfully arrived at the International Space Station (ISS) on Sunday, carrying four replacement crew members from the United States, Japan, and Russia. After a brief transition period, Williams and Wilmore will board the same SpaceX ...