The atmosphere of Uranus is made of methane, ethane and other sophisticated gases. These materials, combined with the energy from lightning, ultraviolet light, and charged particles, constitute the essential elements of conditions under which scientists believe life began. But life on Earth grew and changed, and now these conditions are no longer suitable for life as we know it. Read more about how life on Earth may have begun by reading about the Miller Urey experiment, linked at the bottom of this page, or take the Exploratour of Life on Earth.
Even though the interior of Uranus is made of slushy water ice, Uranus' interior possesses an environment of pressures as great as three million times the sea-level pressure on earth, and temperatures as high as 10,000 degrees. This environment sounds very unfriendly to life as we know it on earth.
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