Uranus smells like farts, astronomers have confirmed — and the discovery indicates there was ‘a big shakeup’ early in the solar system

A photo of Uranus taken by Voyager 2 in 1986 (edited to show its moon and rings).NASA/JPL-Caltech

• Uranus is one of the solar system’s most mysterious planets.
• Scientists had long believed that the “ice giant” world has clouds of hydrogen sulfide, a compound that smells bad to people, but they couldn’t be certain.
• New telescope observations confirm the planet is clouded by the chemical.
• The discovery may help astronomers further unravel the twisted history of the solar system‘s formation.

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