NEW YORK, May 14 — The astrophysicist, whose new book, Astrophysics for People in a Hurry, was published this month by W.W. Norton & Company, sketched his answers in his living room with a Mont Blanc Meisterstück 146 fountain pen. — New York Times

Astrophysicist Neil deGrasse Tyson. — Picture via YouTube/The Late Show with Stephen Colbert