Why are Stars Star-Shaped?

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When you ask someone to draw a star, they'll probably draw something like this - or thisor this. Even ignoring the rainbows, this doesn't seem very scientific, since we knowstars are actually big hot ROUND balls of plasma and far enough away that they're basicallyjust dots. So why do we draw stars that have points?The answer is surprisingly simple: we see stars as pointy. Look carefully next timeyou're outside on a dark night - or just look at this dot (it works best if you make thevideo fullscreen, close one eye, and relax the other as if you're looking at somethingfar away). You should see a pointy, star-like shape! In fact, it's not just humans thatsee pointy stars - some telescopes see them that way, too!This is all bec...
Why are Stars Star-Shaped?
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