Casimir cavities are mysterious spaces between microscopic metal plates in a vacuum. Areas of diminished energy between the plates cause them to push toward each other, as if trying to fill the ...

Physicists have been exploring the theoretical possibility of spaceships driven by compressing the four-dimensional spacetime for decades. Although this so-called 'warp drive' originates from the ...

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The idea of warp drive—the ability to travel faster than the speed of light—has fascinated humanity for decades. It began as a fictional concept in Star Trek and Star Wars, fueling imaginations and ...

For decades, the starship Enterprise has been shorthand for impossible speed, a sleek symbol of television fantasy rather than engineering reality. Now a growing body of warp drive research is forcing ...

Warp drives are staples of science fiction, and in principle could propel spaceships faster than the speed of light. Unfortunately, there are many problems with constructing them in practice, such as ...