Cosmologists discovered the shape of the universe could be more intricate than expected, challenging previous notions of it resembling a spherical surface or a plane.
The surface curvature of Earth, though appearing flat due to its vast radius, can be proven spherical by continuously traveling straight and returning to the starting point.
Cosmologists study ancient light from the cosmos to decipher its shape, similar to how Earth's roundness is confirmed by continuous travel.
Exploring the oldest light in the universe, the cosmic microwave background, provides insight into the universe's structure, supported by science journalism subscriptions.
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