Solid-fuel rockets avoid most of this waste of energy by burning their fuel very fast—in a few seconds, if desirable. Instead of struggling painfully off the ground as liquid-fuel rockets do ...

The first to announce the move was Israeli public company Bet Shemesh Engines, which specializes in the production of jet ...

The rockets are expensive, whether they use liquid or solid fuel, so the West German Ministry of Transport asked jet-propulsion experts to evaluate hot-water rockets, a prewar German idea that ...

Northrop Grumman and the USAF have conducted a full-scale qualification static fire test of the Sentinel ICBM stage-one solid ...

Ursa Major, a Colorado-based firm, has partnered with Palantir to use the latter's Warp Speed manufacturing OS technology to streamline rocket propulsion manufacturing process.

The head of Poland’s space agency was fired over a bungled response to SpaceX debris falling over Polish territory.

This is not the only potential application, however. Because solid-fuel rockets are cheaper than liquid-fuel rockets, the new engine could drastically cut the cost of sending rockets into space ...

The 184-foot-tall (56-meter) rocket lifted off from Kourou, French Guiana, at 11:24 am EST (16:24 UTC). Twin solid-fueled boosters and a hydrogen-fueled core stage engine powered the Ariane 6 ...