Comets may be responsible for bringing the oceans and atmosphere to early Earth.

Pluto is a treasure trove of scientific information waiting to be discovered.

This is first-class science and we'll do everything we can to give it the go-ahead.

This is really a great day for NASA and the exploration of our solar system.

All the instruments are working just fine, and there's a significant amount of fuel. We can do any burn we want to head it toward any target we want.

Part of this risky business of ours is [that] we prepare for contingencies. This project does have such a process to recover the science and capsule to the extent that we can.