More powerful chemical rockets ignited, propelling the starship away from the spaceport.

When he'd been born, spaceships had been crude, disposable chemical rockets.

Half a dozen chemical rockets thumped from the tubes and hissed into the air.

I have picked up some small short-range missiles, but they use chemical rockets and warheads.

The chemical rockets around its front end throttled up to maximum, and two fusion rockets ignited briefly.

Ships have had the power to burn at fifteen or even twenty g since the early chemical rockets.

Small chemical rockets flared around its edges, brilliant sulphur-yellow flames pushing the ship in towards the rotation axis.

I think she'll be the last of the chemical rockets: they say the atomic drive's nearly ready for us.'

Unlike chemical rockets that provide short bursts of thrust, solar sails thrust continuously and can reach higher speeds over time.

Five of the vehicles had already been launched, their chemical rockets burning steadily as they raced off into the void.

It might someday fly above the atmosphere, once men had a safe way to get it into orbit with chemical rockets.

They could not visit the main six sites where the chemical rockets had fallen and lots of people were killed, he added.

The fastest chemical rockets produce thrust by igniting one type of chemical (the oxidizer) to burn another (the propellant), creating thrust.

But we can strap chemical rockets onto a couple hundred rocks the size of bunk beds and rain Armageddon down on Martian dome cities.

Four chemical rockets under high burn lit the ground below him, scattering the empty pallets and knocking Miral's abandoned loading mech on its back.

Chemical rockets in the nose fired to slow it as dirty ablation smoke poured out of all ninety-six brake drums.