ScienceDesk, 
The universe may have a complex geometry — like a doughnut.
Science News reports: "In a universe with an analogous, complex topology, you could travel across the cosmos and end up back where you started."
ScienceDesk, The universe may have a complex geometry — like a doughnut.
Science News reports: "In a universe with an analogous, complex topology, you could travel across the cosmos and end up back where you started."
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