top | item 46562715

(no title)

zaken | 1 month ago

Sharks are older than trees

discuss

order

colechristensen|1 month ago

And the north star, Polaris, is a fraction the age of sharks at only 50-70 Mya (it's a trinary star system but the other two stars are much dimmer and not visible to the eye)

echelon|1 month ago

I love this fact.

Also: life on earth is almost as old as the universe itself, within the same order of magnitude. 4.1 GYA (billion years ago) vs 13.8 GYA. We're old and intelligence is hard.

baxtr|1 month ago

I think there is a theory that we’re not seeing any aliens simply because life on Earth started so early.

yread|1 month ago

That's not that early, no? There was probably enough C, H, N, O, P, S, Na atoms for life to start 10B years ago. You probably couldnt rely on iron being everywhere though but that's not such a hard requirement.

Ericson2314|1 month ago

Yes I love it too, wish more people appreciated it