xkcd: Ancient Stars

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Ancient Stars
Ancient Stars

Permanent link to this comic: https://xkcd.com/1342/
Image URL (for hotlinking/embedding): https://imgs.xkcd.com/comics/ancient_stars.png
((All of the panels of this comic are white-on-black.)) [[Two figures stand facing each other, looking up at the sky.]] Figure One: Just think - the light from that start was emitted thousands of years ago. It could be long gone. [[Figure One looks at Figure Two, who is still looking up.]] Figure Two: That's Sirius. It's eight light-years away. [[Figure One looks up again.]] Figure One: Oh. [[The two figures look at one another.]] Figure One: Just think - the light from that star was emitted in the previous presidential administration. Figure Two: Hmm, doesn't pack quite the punch. {{Title text: 'The light from those millions of stars you see is probably many thousands of years old' is a rare example of laypeople substantially OVERestimating astronomical numbers.}}
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Earth temperature timeline
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