Like stretch marks left on skin that expanded too quickly or cracks embedded in freezing ice, cosmic strings are artifacts of ...
Add Yahoo as a preferred source to see more of our stories on Google. While parallel universes are a staple of science fiction, there are some real scientific theories to support them. But if parallel ...
Find the answer for Time travel or parallel universes, in sci-fi from the people who brought you the USA TODAY Daily ...
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Star Trek's mirror universe: A pioneering alternate reality
In the season 2 episode "Mirror, Mirror," Star Trek perfected the alternate universe trope long before Hollywood's multiverse obsession.
While parallel universes are a staple of science fiction, there are some real scientific theories to support them. But if parallel universes do exist, could we ever travel to them? It certainly wouldn ...
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