š„ŗ Could aliens have left tracks in the intergalactic highways?ā ā A team of researchers are pondering the concept, writing in a new paper that the collapse of a warp bubble ā based on the hypothetical warp drive idea that a spacecraft could travel faster than the speed of light ā could generate detectable gravitational waves.ā ā And that, the thinking goes, could aid us in our search for alien life.ā ā There are a few, er, difficulties with this proposition. One, the existence of a spacecraft that can conquer the speed of light would require us to rewrite the laws of physics. Another "key challenge is stability," the researchers write.ā ā But it is a fascinating thought experiment.
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