Astronauts Suni Williams and Butch Wilmore, who have been stranded at the International Space Station for nine months, will finally return to Earth on Tuesday, one day earlier than expected.

NASA plans to provide live coverage of both the undocking process and the ship's reentry into Earth's atmosphere through landing. People at home can watch the hatch closing with a broadcast that begins at 10:45 p.m. ET on March 17. Undocking will roll into the next day at 12:45 a.m. on March 18 .