Discovery scheduled to launch at 1:36 p . ET Tuesday . Cape Canaveral has 80 percent chance of acceptable weather for launch . Discovery to deliver equipment to international space station . Commander Nicole Stott will remain on the space station as a flight engineer .
Discovery scheduled to launch at 1:36 a.m . ET Tuesday . Cape Canaveral has 80 percent chance of acceptable weather for launch . Shuttle to deliver equipment to international space station . Astronaut Nicole Stott will remain on the space station as a flight engineer .