Like stretch marks left on skin that expanded too quickly or cracks embedded in freezing ice, cosmic strings are artifacts of what the universe looked like in the moments before it rapidly changed from a high-energy to low-energy environment, scientists believe. These strings are roughly as thick as a proton, extremely dense, and light-years long.
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Source:www.popularmechanics.com
Original Image Link
Source:www.popularmechanics.com
Posted: 2025-01-22 01:40:00