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With no solid surface to slow them down, Jupiter's spots can survive for many years. Saturn has one of the most extraordinary atmospheric features in the solar system: a hexagon-shaped cloud pattern at its north pole. The hexagon is a six-sided jet stream with mile-per-hour winds about kilometers per hour.
Each side is a bit wider than Earth and multiple Earths could fit inside. Storm chasers would have a field day on Saturn. Part of the southern hemisphere was dubbed "Storm Alley" by scientists on NASA's Cassini mission because of the frequent storm activity the spacecraft observed there.
At least one storm chased itself: In and , scientists witnessed a storm that churned its way around the planet until it ran into its own tail and sputtered out. But on Titan, the rain, rivers and seas are made of methane instead of water. Scientists were trying to solve a puzzle about clouds on the ice giant planet: What were they made of? When Voyager 2 flew by in , it spotted few clouds. This was due in part to the thick haze that envelops the planet, as well as Voyager's cameras not being designed to peer through the haze in infrared light.
Also in , researchers using the Gemini North telescope on Hawaii's Mauna Kea discovered that clouds on Uranus are made up of hydrogen sulfide — the stinky, rotten-egg smelling gas. So go ahead, make another joke, but the joke might be on you: the planet's name is actually pronounced YUR-uh-nuss, not yur-AY-nuss. Neptune is our solar system's windiest world. Winds whip clouds of frozen methane across the ice giant planet at speeds of more than 1, miles per hour 2, kilometers per hour — about nine times faster than winds on Earth.
Neptune also has huge storm systems. The new observations confirm that Juno should work as planned, he says.
Juno will get close to the planet — just 5, kilometers above the cloud tops. That will let it sneak inside belts of radiation around Jupiter. That radiation makes it hard to study the planet from Earth, and limits what telescopes like the Very Large Array can see. But the spacecraft will see only a narrow piece of giant Jupiter at a time. That way, they can better understand what the spacecraft is telling them about this stormy giant.
By Christopher Crockett June 16, at am. Planets Pluto is no longer a planet — or is it? Observations with the Hubble Space Telescope have revealed more clouds on Uranus than was once thought. Neptune is way out there — an average of 2. That means the ice giant is seriously cold. If that sounds familiar, it's because Uranus is about the same temperature. The reason why the two planets are the same temperature at such different distances from the Sun is still a mystery.
Neptune has a thick atmosphere and is covered by constantly changing clouds that whip around the planet. Wind is the name of the game on Neptune. Wind speeds there have been measured at near 1, miles per hour, making them the fastest in the solar system! This image captured by Voyager 2 shows some of the bright cloud streaks above Neptune.
Earth has some pretty wild weather. But after seeing the other options in our solar system, it seems like a pretty good place to live! The best way to handle Earth's extreme weather is to be prepared and keep an eye on the weather forecast. GOES-R satellites track hurricanes, tornadoes and other big storms.
These satellites also keep an eye on weather caused by the Sun — called space weather. With this information, meteorologists can make forecasts that help people stay safe.
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