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Venus breaks the rules of planetary timekeeping. One full spin on its axis takes about 243 Earth days. But one trip around the Sun takes only about 225 Earth days. That means Venus’s rotation day is longer…
Saturn is already dramatic with its rings, but its north pole has something even stranger: a massive six-sided storm pattern. NASA’s Voyager spacecraft first spotted the feature in the 1980s, and the Cassini…
About 64 light-years from Earth, there’s a giant exoplanet called HD 189733 b that looks like a calm, beautiful blue marble from far away. Up close, it is anything but peaceful. This world is a “hot Jupiter,”…