Early Monday morning, NASA’s half-ton, nuclear powered Curiosity rover touched down on the surface of Mars. Minutes later, the rover tweeted, “GALE CRATER I AM IN YOU!!!” The Robot’s outburst prompted a retort from Stephen Colbert. “I don’t know who this Gale is, but gentlemen don’t kiss and tell,” he admonished on his Tuesday show. But Colbert had his facts wrong—Curiosity is no gentleman. I discovered as much when I contacted NASA to find out who exactly is responsible for Curiosity’s sassy and flamboyant personality on Twitter, which has already managed to attract 900,000 followers.