April 29, 2022: Planets aren’t supposed to have tails, but Mercury does. Dr. Sebastian Voltmer just photographed it from La Palma in the Canary Islands: “This is NOT a comet, not even a meteor, but the planet Mercury, which is currently very close to the Pleiades,” says Voltmer. “How is the tail formed? The solar … Continue reading Mercury’s Comet-like Tail