Deze tweet geeft goed aan hoe enorm groot de Olympus Mons op Mars wel niet is. Mars' Olympus Mons, the tallest known volcano in the solar system, has such a gradual slope that someone standing at the base couldn't see the summit because it's beyond the horizon. pic.twitter.com/RVBfY71VGX — Fermat's Library (@fermatslibrary) 15 juni 2019 … Meer lezen over AstroTweets van de Week