Tuesday, April 5, 2022

Few understand this



 

Credit: Alchetron 


Earendel

This kind of stuff makes my head spin. Apparently, astronomers have discovered a super-distant star (nicknamed Earendel) at the "comoving distance" of 28 billion lightyears from Earth. Whatever that even means, since the star was formed only 900 million years after the Big Bang (when the universe was much smaller than today) and ceased to exist after only a few million years. The star literally doesn´t exist anymore, yet its previous position is *now* 28 billion lightyears away from us (at least at the previously mentioned "comoving distance"). 

Or something.

Still, it *is* fascinating...

 

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