A wheely cool feature of Saturn's rings 🛞
In this sharp photo snapped by NASAHubble, you can see spokes on Saturn’s rings. These spokes come and go—only lasting two or three rotations around the planet as new spokes are added to the rings. They appear as ghostly grey lines running perpendicular through the rings, much like spokes on a wheel.
Scientists believe that these spokes could be a product of Saturn’s magnetic field interacting with solar wind, creating electrostatic force that floats dust or ice above the rings. The length and width of these spokes can reach longer than Earth’s diameter.
From Hubble’s observations, we learned that the number of spokes and their contrast with the rings vary by season. Unlike Earth’s seasons, which only last a short three months, Saturn’s seasons last around seven years. Just as spooky season on Earth occurs around the planet’s equinox, Saturn’s spokey season also occurs around the planet’s equinox, resulting in darker, more numerous spoke...
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