Jupiter is a massive, terrifying planet. Despite being studied for centuries and even visited by nine space probes in the last 50 years, the undisputed king of the Solar System has managed to keep some things hidden from us. Until now.You most definitely heard of Jupiter’s Great Red Spot, the gigantic storm that’s been raging for hundreds of years. It’s freakishly big. Wider than Earth kind of big.If Earth ever had a storm like that rampaging on its surface, well, there would be no Earth as you know it.What you might not have heard of is that there’s a new massive storm in town. The Great Cold Spot.This one is weird. For one, it’s almost as large as the Great Red Spot. It’s also the coldest place in Jupiter’s clouds, about 200 °C (360 °F) cooler than its surroundings.Which is how it got its name.Scientists still don’t fully understand how it formed. We know that the Great Red Spot is powered by Jupiter’s swirling gases. But the Great Cold Spot could be fueled by auroras. Jupiter’s auroras would be a remarkable sight to see. They aren’t exactly like the ones on Earth. We get our space light shows thanks to the Sun’s solar wind. But Jupiter’s auroras don’t rely much on the Sun. They appear thanks to the charged particles inside Jupiter’s unimaginably huge magnetosphere.But that’s not the only mysterious spot lurking in Jupiter’s deadly atmosphere. Among the gas giant’s beautiful swirling gases, there lies a dark vortex with an intriguing name. The Great Abyss.This is one of the most baffling features scientists discovered on Jupiter. And let me remind you, we’ve sent nine probes to this giant. From Pioneer 10, the first spacecraft to fly by Jupiter in 1973, to Juno, the most recent space probe to do an in-depth study of the planet. It took Juno 20 passes to finally notice and capture this dark center of the Great Abyss. And yet, scientists don’t know exactly what this pitch-black hole is and how it formed.I would call it Jupiter’s Great Black Hole, but I guess that name would be confusing. Besides, the Great Abyss isn’t anything like a black hole. It’s a very dark center of a vortex. It might run deep. But at least it wouldn’t suck you in like a black hole would. Likely not.Jupiter’s atmosphere is horrifying. The gas giant is mainly made of hydrogen and helium. But its clouds are a lot more dangerous than that. On the top, it’s all ammonia ice. As soon as you dive deeper, under the colorful patterns, you’d likely encounter ammonium hydrosulfide crystals. And at the very deep depth of the gas giant, there’s water ice and vapor.That’s right, Jupiter doesn’t have a solid surface. And it’s freaky. Jupiter is basically a frigid cold cloud floating in space, with a large hydrogen ocean at its center. Yet it’s the biggest planet in the Solar System, more massive than all other planets combined.Then, there are winds. Jupiter’s winds are ridiculously scary. They’re strong enough to blow more than three Earths worth of material around the planet. At the equator, they go as fast as 540 km/s (335 mph). And deep into Jupiter’s atmosphere, these winds might be blowing Jupiter’s magnetic field off.Jupiter’s magnetosphere is gigantic. It’s 21 times the diameter of Jupiter itself.No other planet in the Solar System can boast a stronger magnetosphere than Jupiter’s. And if that’s not enough, this gas giant has not two but three magnetic poles. One at the north pole, another one at the south pole. The third one lies near Jupiter’s equator. It was just recently discovered by Juno and dubbed the Great Blue Spot.You know what’s even more stunning than that? Turns out, Jupiter is a planetary cannibal.In the early days of our Solar System, the gas giant was one of the first planets to form. It really explains why it’s so gigantic. But despite being so gassy, Jupiter has a lot of heavy elements inside it. Thanks to Juno, we now know that this monstrous planet has about 30 Earths worth of heavy elements in it. All because Jupiter is literally gobbling up other planets.OK, it’s not exactly planets, more like planetesimals. These are clumps of dust and rock that can be hundreds of kilometers across. If Jupiter hadn’t eaten them for breakfast, these clumps could have become a new planet, like Mars or Earth.Just imagine what having another rocky planet in the Solar System could be like. Sure, it could’ve pushed Earth out of the habitable zone. Or this new planet could’ve crashed into Earth, not leaving us any chance to thrive here.But it could also be pretty cool if there was another Earth-like world nearby.