A vehicle that can take off, fly and land like an airplane, but also travel in space is "the holy grail" of aeronautics.
Instead of storing flight data on board, aircraft could easily send the information in real time to the ground.
To hear some people tell it, the internal combustion engine is dead. But engineers are coming up with new ways to improve the engine's efficiency.
As of Thursday, most of Europe's major hubs were closed. Here are questions and answers as to why it happened.
As of Thursday, most of Europe's major hubs were closed. Here are questions and answers as to why it happened.
A new thermal engine produces more energy than it consumes by tapping water temperature differences.
An updated version of a two-hundred-year-old invention is turning sunlight into electricity.