How do astronomers describe the shape of the universe, and what could it mean for the fate of the cosmos? When you purchase through links on our site, we may earn an affiliate commission. Here’s how ...
Is the universe infinite, Aristotle asked in 350 BCE, “or is this an impossibility? The decision … is … all-important to our search for the truth.” The Greek ...
Most people think of space as a flat sheet: You travel in one direction, and you end up far from your starting point. But a new paper suggests that the universe may in fact be spherical: If you travel ...
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