1I/2017 U1 ‘Oumuamua, the first asteroid of extrasolar origin identified in our Solar System, has had a violent past which is causing it to tumble around chaotically, according to an international team of astronomers led by Queen’s University Belfast. This artist’s impression shows the first interstellar asteroid — 1I/2017 U1 ‘Oumuamua. Image credit: M. Kornmesser / ESO. In October 2017, the Pan-STARRS 1 telescope in Hawai’i picked...