Despite many successful firings, American nuclear rockets did not fly before the space race ended.

It's similar to whatever makes those rockets fly into the air.

The rockets which were supposed to land the supply ship on Earth flew free a good many thousands of miles from it.

First, a private rocket, below, must fly three people 62 miles above the earth.

They form, as it were, a heavy launching-pad from which your rocket will fly higher than if you had not known them.

Development was continued as a commercial launch system, and the first rocket flew in 1990.

The rocket flew across the sky in a blaze of fiery light.

Let the rockets fly and the routes to the dirt towns would be open.

If the rocket doesn't fly at all, check two things:

If the rocket does fly but not very well, there are things you can adjust.