Like stretch marks left on skin that expanded too quickly or cracks embedded in freezing ice, cosmic strings are artifacts of ...

"This is a major step toward understanding how galaxies like our Milky Way came to be." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

In the moments before the Big Bang, our universe was a hot, dense, and extremely high-energy place. That all changed when the universe exploded 13.8 billion years ago. Rapid inflation divided a single ...