https://xkcd.com/2908
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Astronomers are a little unsure of the applicability of this index, but NASA's Planetary Protection Officer is all in favor.
Fun fact, you can actually fit every single other planet at the same time in the space between the earth and the moon, with a bit to spare.
Though, not for very long. Gravity hates when you try things like this.
A community for a webcomic of romance, sarcasm, math, and language.
Though, not for very long. Gravity hates when you try things like this.