Saturn, whose atmosphere consists mainly of hydrogen, is different. When interacting with particles in the solar wind, hydrogen molecules produce ultraviolet light that is invisible to the naked eye or ground-based telescopes because the Earth's atmosphere blocks most of the UV light.
But Hubble can "see" ultraviolet light, and the 2017 scientists' observations showed that the stronger the solar wind, the more intense the Auroras. In addition, the Auroras of Saturn were the brightest at dawn and just before midnight.
The Auroras of Saturn are significantly larger than those found on Earth. The dancing lights shown in the new images cover an area nearly three times our planet's diameter, Lamy said in an email to NBC News MACH.
Auroras not only provide heavenly eye candy, but also important insights on planets. Cona Nixon, a planetary scientist at NASA's Goddard Space Flight Center in Greenbelt, Maryland, said that by studying auroras both on the properties of gases in the upper atmosphere and [get] we have a glimpse into what is Learning can happen at the heart of [planet’s] ̵
Earth and Saturn are not the only planets in the solar system with Auroras, and the light shows have also been discovered on the gas giants Jupiter, Neptune, and Uranus, as well as on Mercury.
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