They're good to go, ... They've given us the green light to proceed.

It's almost going to look like a hood ornament on top of that big rocket. We want to give it a lot of speed to get to Pluto as fast as we can.

There are no leaks in the hangars and the doors are sandbagged. The Pluto spacecraft is doing fine.

Surveying for the deepest insights into the mysterious evolution of Mars!

We don't know exactly what happened to it, but we know not to fly with it

There are long faces here in the control center and around the site. Everybody was so looking forward to flying today.