If you’ve ever wondered where the actual hell could be located (if it were real), I’m here to tell you it would be in our Solar System. On Jupiter’s moon Io, actually. It was named Io (which means “moon” in ancient greek) after one of Zeus’ lovers. This little guy is packed with about 400 active volcanoes. In fact, it is the most active (volcanically) body in our Solar System. A total badass! It’s a bit bigger than our Moon, with a diameter of 3642 km. Its distance from Jupiter is 421,700 km. Just like our Moon, Io is always showing the same side to Jupiter. It is due to tidal locking.