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246 points world2vec | 1 comments | 23 Jun 25 16:24 UTC | HN request time: 0.001s | source

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LeratoAustini ◴[23 Jun 25 17:51 UTC] No.44358284[source]▶

I often think about how cold our lifeforms on earth are, relative to temperatures of things in the universe. 0 Kelvin is theoretical lowest possible temp, quasars are apparently > 10 trillion Kelvin (10,000,000,000,000K), yet all life we know of is between what, 250K and 400K?

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robin_reala ◴[23 Jun 25 18:49 UTC] No.44358812[source]▶

>>44358284 #

0 Kelvin is theoretical lowest possible temp

Let me introduce you to negative temperature systems!

https://en.wikipedia.org/wiki/Negative_temperature

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1. Sniffnoy ◴[23 Jun 25 19:42 UTC] No.44359277[source]▶

>>44358812 #

Negative temperatures are hotter than positive temperatures, though, so this isn't really relevant to the parent comment.

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NASA's Voyager Found a 30k-50k Kelvin "Wall" at the Edge of Solar System