2008 TC3 animation. (Astronomical Institute of Charles University/CC BY 4.0) In 2008, something unique fell out of the sky over Sudan, exploding into fragments across the vast, arid expanses of the Nubian Desert. This hurtling object from above became known as Almahata Sitta: a collection of roughly 600 meteorite fragments, painstakingly recovered by researchers, and taking its name – 'Station Six' – from a nearby train station. What was unique about Almahata Sitta is that it represented something unprecedented in astronomy: the first time an asteroid impact was successfully predicted in advance by scientists. Ever since, the splinters of...