India, March 17 -- A pair of NASA astronauts, who have been held up on the International Space Station since June, are expected to return to earth by Tuesday evening, according to NASA.

Suni 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, would depart the space station at 1:05 a.m. Tuesday, NASA said in its latest update.

The astronauts are scheduled to land at the splashdown locations off the coast of Florida at 5:57 p.m., pending weather conditions, the U.S. space agency said.

It will be followed by a media conference by top NASA and SpaceX officials.

Members of the Crew-9 mission were scheduled to depa...