“Warp drives” used by super-advanced alien civilizations may create specific space-time ripples in their wake that we can spot from Earth, a new paper argues. However, the jury is still out on whether the faster-than-light technology is even possible to create in the first place.
A warp drive is a hypothetical device that enables an object to travel faster than light. In theory, the device creates an invisible sphere around an object, known as a warp bubble, that contracts the space-time in front of it while expanding the space-time behind it. This essentially moves the universe around the object, enabling it to get from point A to B faster than light.
The warp drive concept was first theorized in science fiction books in the 1940s and 1950s but was popularized from the 1960s onwards thanks to the Star Trek franchise.
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