A polar cyclone is swirling on Uranus, further showing that the planet's atmosphere is a hive of hidden activity.
Unlike Earth's cyclones, Uranus polar vortex is not formed of water vapor but of ices of methane, ammonia and hydrogen sulfide. Nor does the storm drift, instead remaining rooted to the pole. Little else is known about it at this time.
"Does the warm core we observed represent the same high-speed circulation seen by Voyager? Or are there stacked cyclones in Uranus' atmosphere?" wondered Atkins. In the recent Planetary Science and Astrobiology Decadal Survey issued by the U.S. National Academies, Uranus was highlighted as a priority for a. To support this goal, planetary scientists are doubling their efforts to study Uranus to help inform the scientific goals of any future mission.
Observing and better understanding Uranus' polar cyclones is a key scientific aim, and Atkins and his colleagues hope to continue studying the north polar vortex for many years to come to observe if and how it might change over time. Already, there are indications that the warm core has begun to brighten as northern spring has progressed.
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