HOW’S THAT SPACE PROGRAM COMING ALONG? Fireball Spotted Over Australian Desert May Have Been Super-Rare ‘Minimoon.’ “It was thanks to images taken by these cameras – called the Desert Fireball Network – that astronomers were able to ascertain the fireball was no ordinary exploding space rock. Instead, velocity data revealed the rock had probably been in orbit around Earth before meeting its fiery end; a phenomenon known as a temporarily captured orbiter, or, colloquially, a minimoon.”