rocketship

For the Rocketship charter network, it means experimenting with ways to use computers to support instruction.

A rocketship must burn its fuel by chemical explosion in order to push its cargo load upward.

Every eye was on him as he put the gaudy model rocketship on top of the table and stepped back.

Once in two weeks Earth-time a rocketship came around the horizon from Lunar City with stores for the colony deep underground.

The other rocketship was a speck, a mote, invisible because of its size and distance.

It takes just as much energy to lift an anti-gravity ship as to lift a rocketship.