Âm thanh chia sẻ

What if I told you there is a volcano on another planet... ...so large that standing at its base, you couldn't even see the summit? A mountain so enormous it makes Mount Everest look like a foothill. It's real. It exists right now, in our solar system. It's called Olympus Mons. And by the end of this video, the numbers will genuinely stop making sense.