The four astronauts of SpaceX's Crew-11 mission are scheduled to launch toward the International Space Station today (July 31), and you can watch the action live.

Update: The launch has been postponed from Monday, Aug. 11 to Tuesday, Aug. 12, with the launch window targeted for 7:05 p.m. to 11:05 p.m. PT, the Vandenberg Space Force Base said in a launch alert.