Read more: Methane hurricanes may exist - liquid metal hurricanes are less likelyĬonditions on the planet are hostile to humans, with the stench of hydrogen sulfide a comparatively minor problem. Similar to Saturn, the planet has a ring system, but its rings are fainter and harder to spot. It was named after the Greek god Uranus, who was the father of Kronos and grandfather of Zeus in Greek mythology. Uranus is the seventh planet from the Sun and its diameter is about four times that of Earth. "These differences in atmospheric composition shed light on questions about the planets' formation and history," NASA said in a press release. Jupiter and Saturn are closer to the Sun than Uranus and Neptune. Researchers detected ammonia above their clouds but not hydrogen sulfide, NASA said. This provides a "striking difference" from the other two gas planets, Jupiter and Saturn. Scientists suspect that clouds on Uranus' neighbor Neptune also contain hydrogen sulfide. "Now, that part of the puzzle is falling into place as well." "We've strongly suspected that hydrogen sulfide gas was influencing the millimeter and radio spectrum of Uranus for some time, but we were unable to attribute the absorption needed to identify it positively," Orton said.
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