Our technology is advancing for sure, but is it good enough to detect alien spaceships?via WIRED
You may have seen warp drives in series like Star Trek. A warp drive is a hypothetical form of technology that compresses the space in front of a starship and expands it behind. While nothing can travel faster than the speed of light, in a warp drive we can cheat by making our distance shorter. So, the time it takes to go from A to B is less than the time light takes on another uncompressed path.
The jump from sci-fi to real science was made by theoretical physicist Miguel Alcubierre in 1994, when he was inspired to model a warp drive using Einstein’s equations of general relativity.
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