We are totally prepared, both for if everything goes perfectly and if the spacecraft acts up a little bit.

This spacecraft is a comet explorer. It has the tools to do a lot more.

We've flown through the worst of it and we're still in contact with our spacecraft.

We took a spacecraft and flew it five years. But in these five years, we went back to the origin of time - to the origin of our solar system.

This is a very unique vehicle. During the early part of the flight, it acts like a spacecraft. In the middle phase, the HTV reenters the atmosphere like the Space Shuttle, and in the latter stage, it flies like an aircraft. It is an interesting mix of challenges and technologies.

This thing went like clockwork. To see that thing in one piece on the floor of the desert is very moving.