India, March 18 -- Four members of NASA's Crew-9 mission, including a pair of US astronauts who had been held up on the International Space Station since June, have finally begun their return journey to earth aboard the SpaceX Dragon spacecraft.

Sunita Williams and Butch Wilmore, who were forced to stay back in the space station for nine months, along with another NASA astronaut Nick Hague and Russian cosmonaut Aleksandr Gorbunov, undocked from the space-facing port of International Space Station's Harmony module at 1:05 a.m. Tuesday, NASA said in its latest update.

Dragon is scheduled to splash down around 5:57 P.M. ET off the coast of Florida, after which crew members will be recovered.

It will be followed by a media conference by top ...