this post was submitted on 21 Jul 2025
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Science Memes

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[–] doomsel@lemmy.world 27 points 1 day ago (1 children)

If I understand correctly, it is 2billion years old, but 50million years ago it merged with another star, making it more massive and thereby more bright an visible from earth. Fun fact: Due to it beeing a yellow supergiant it will turn red in a couple of thousand years and then die quiet soon.

Source: https://www.scientificamerican.com/article/how-old-is-the-north-star-the-answer-could-change-our-maps-of-the-cosmos/

[–] Saleh@feddit.org 8 points 1 day ago (1 children)

"soon" and "young" are always interesting terms in Geology and Astronomy.

[–] samus12345@sh.itjust.works 3 points 9 hours ago

Tens of millions of years old? Practically brand new!