Space shuttle launch is scheduled this afternoon at around 4:50 p.m. (US time). A 3-hour process of fueling the space shuttle "Discovery" started 7:25 am earlier to prepare the launch.
There will be about 50,000 people who will present to watch it take off. Although for us who can't come could watch it online later.
This will be Discovery's last flight before it is retired by NASA. There will be a final inspection team that will thoroughly check the shuttle today to ensure there is no presence of ice and no particular problems prior to the launch.
