Lesson #392: Cosmic String

Every now and again I learn about something that makes me say something along the lines of, “holy f**k, that’s cool!” out loud. Today, I learned about cosmic string.

A cosmic string is a one-dimensional — they have length, but a height and width smaller than a proton — fault line in the universe that’s made up entirely of energy. Which means it has no mass. Which means that a string even a mile long would be much, much heavier than the earth. Astrophysicists theorize that cosmic strings, of which they believe there are billions, are flaws created during the Big Bang’s cooling period (which was literally nanoseconds after the Big Bang). So basically, cosmic strings are the cracks that form in asphalt after too many freeze-thaw cycles,* but way more awesome.

Serio, you guys, do you have any idea how effing cool that is?!? My head nearly exploded from the excitement of learning that.**

As of yet, there has been no direct evidence of cosmic strings, though researchers at the University of Buffalo found indirect evidence while studying quasars a few years back.

Okay, here’s the super ultra cool part — in case the rest of that was too real science for you: because of the structure of cosmic strings, anything that found itself within one would travel backwards through time because the gravitational pull is such that anything within a cosmic string would benefit from (fall victim to?) time dilation.

Cosmic string is science fiction come to life. On a very, very, very, very small scale. If it exists at all.***

If you’re interested (and you should be), you can read more here, here, here, and here.

*A thing that will make no sense to those of you who didn’t grow up in cold climates.

**True story: when you’re interested in something you’re hearing/reading, your pupils dilate. When I’m really interested in something, my head actually tingles.

***Which it probably does.

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