3:38:57
i cant sleep so lets play something cozy 【NIJISANJI EN | Elira Pendora】
2026年6月29日 20:30 配信
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1:39:19
IIUC, The color of the light is based off the amount of hydrogen vs helium, and you can just do math to figure out how that maps to age? Or something?
他2
1:39:33
stars especially are hard to wrap your mind around bc the light takes millions of years to reach us
他11
1:39:34
considering how long it takes light to get here we're literally looking into the past when staring at the night sky
他73
1:39:45
the general theory is that originally stars were only made of hydrogen but every time a star undergoes supernova they'd make new elements by fusing them
他10







