At NASA's Kennedy Space Center in Florida, Space Shuttle Discovery has arrived at
Launch Pad 39B following an overnight move from the cavernous Vehicle Assembly
Building. Perched atop the mobile launcher platform and carried by a massive crawler transporter, the shuttle assembly began the 4.2-mile journey at 7:29 a.m. GMT
and was officially in place at the pad at 4:03 a.m. Friday 10th November.

The STS-116 mission is No. 20 to the International Space Station and construction flight 12A.1. The launch window opens Dec. 7.

NASA has said it over and over again: The coming missions to finish the
International Space Station are among the hardest and most complex ever.

But if you ask the astronauts and engineers which of the final 14 assembly flights may
be the most complex, many would point to Discovery's next mission, set to launch in December.

"What makes this one singularly unique is the fact that we're going to rewire the space station," Mark Polansky, Discovery's commander, said.