The landing will be carried by NASA at their NASA TV website: https://www.nasa.gov/multimedia/nasatv/.
The STS-120 astronauts were awakened on Wednesday at about 2:38 a.m. EST. The procedural/checklist activities to deorbit the space shuttle from space began around 8:03 a.m.
The payload bay doors of Discovery were just given a go-ahead to be closed. They will close at 9:45 a.m. EST, followed by the deorbit burn at 11:59 a.m. over the Indian Ocean.
At of 9:21 a.m. EST, the shuttle bay doors have been closed, as announced by NASA TV.
For its first try, Discovery will take a northwest to southeast course for its re-entry into Earth’s atmosphere that flies over the western coast of Canada and the U.S. states of Montana, central Nebraska, northeast Arkansas, tip of Tennessee, northeast corner of Mississippi, Alabama, and northern Florida before reaching its final destination at the Kennedy Space Center.
Residents of Birmingham, Alabama should hear a double sonic boom as the shuttle passes over them at about 34 miles high in the sky about ten to fifteen minutes before landing. The Discovery space shuttle will be gliding over them at about 8,000 miles per hour.
Weather does not seem to be a problem at the Cape Canaveral, Florida landing site, with partially cloudy conditions, and only a slight chance of rain. Winds are between 10 to 20 miles per hour with a temperature expected to reach 73 degrees Fahrenheit (23 degrees Celsius).
The only concerns at the moment are with the winds and a chance of clouds rolling in near the time of landing. Currently only scattered clouds are at 4,000 feet above the landing site. If winds exceed 29 miles (46 kilometers) per hour, the try to land will be postponed to Thursday or Friday, either at Kennedy, California's Edwards Air Force Base, or New Mexico's White Sands Space Harbor.
However, currently, the landing of the crew and its Discovery spacecraft is expected to occur at 1:01 p.m. EST (1801 GMT). Commander Pamela Melroy, on her third shuttle flight, will land the shuttle, assisted by her pilot George Zamka, on his first flight. They will land on runway 33, approaching from the southeast, at the Kennedy Space Station.
If the STS-120 astronauts can’t land at this go around, and the winds are ok, a second try at a landing is possible on the next orbit with a deorbit burn at 1:34 p.m. EST and a landing at 2:36 p.m. EST (1936 GMT).