A jet engine is any engine that can propel an aircraft of some kind via rearward expulsion of a jet of fluid, typically a hot exhaust gas that the engine generates by drawing in fuel from the ...

Venus Aerospace just took one giant leap toward hypersonic travel. The Houston-based startup successfully completed the first U.S. flight test of an exotic new type of engine, capable of enabling ...

Perhaps not as visible as their counterparts doing business in the automotive industry, aviation startups are just as numerous. Some of them are proposing outlandish ideas that will probably never ...