Comets and Meteors; Sun; Astronomy; Solar Flare; Solar System; Astrophysics; Extrasolar Planets; Northern Lights

In 2017, a mysterious comet dubbed 'Oumuamua fired the imaginations of scientists and the public alike. It was the first known visitor from outside our solar system, it had no bright coma or dust tail, like most comets, and a peculiar shape…