Even fusion rockets would have trouble doing that for days at a time.

"Nobody's made a fusion rocket," he said to Humphries.

If this fusion rocket can be made to work.

Dan Randolph will send a team out to the Belt on a fusion rocket.

"We have developed and tested a small flight model of a fusion rocket," Randolph said.

He had reviewed the technical data on the fusion rocket with the best scientists and engineers in the world.

"Once we light the fusion rocket," Dan answered, "nothing in the solar system will be able to catch us."

Without her it would've taken years to build that fusion rocket.

The Eagles are powered by four nuclear fusion rockets and carry fuel reserves for 48 hours (2 days) of flight.

And the first fusion rocket of major scale, built for both speed and distance.