Quickly, what is named Enceladus...? Not many people will know: this is one of the 61 known moons of Saturn, see a picture below. This picture is part of another noteworthy photo streak from The Big Picture. They featured Saturn with the rings and moons due to the recent Equinox, which happens only every 15 years. Equinox means that the Sun illuminates the Saturn and the rings when they are in one plane. When looking from Earth, the rings would become nearly invisible. But from another point of view, many new details actually become visible when this happens, and the Cassini space probe was at hand to show us. Thanks!

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