Meet Neil deGrasse Tyson—astrophysicist by profession and tie collector on the side. He is one of the scientists that we are profiling on "The Secret Life of Scientists," a web-exclusive series from NOVA. Every two weeks, you'll have a chance to meet a new scientist or engineer. Watch their videos. Ask them questions. Find out how their surprising secret lives fuel their science, and vice versa.

"The Secret Life of Scientists" is produced for NOVA by Seftel Productions. Visit pbs.org/nova/secretlife

Exclusive funding for "The Secret Life of Scientists" provided by the Alfred P. Sloan Foundation