Randall Munroe

Randall Munroe, a former NASA roboticist, is the creator of the webcomic xkcd and the author of "What If?: Serious Scientific Answers to Absurd Hypothetical Questions" and "xkcd: volume 0." The International Astronomical Union recently named an asteroid after him; asteroid 4942 Munroe is big enough to cause a mass extinction if it ever hits a planet like earth.