What do we know about the Solar System? Actually, quite a lot. Our spacecraft made it to Pluto, and landed on the Moon, Mars, Titan, and even Venus. But not on Jupiter. This gas giant has no surface for a research probe to land on. But what if it’s not quite true? What if we send a submarine to Jupiter and try to figure it out? In this video, you'll find out: Does it rain on Jupiter? Is it true that the planet smells like rotten eggs? And can we get to the center of Jupiter?