<p>The Nerdist Chris Hardwick joins us for an upbeat discussion of clocks, calendars, and leaps in time.</p>

StarTalk Live: The Particle Party (Part 1)

Science, pop culture, and comedy collide on StarTalk Radio! Neil deGrasse Tyson, astrophysicist and Director of New York's Hayden Planetarium, and his comic co-hosts, guest celebrities, and scientific experts explore astronomy, physics, and everything else there is to know about life in the universe. New episodes premiere Tuesdays. Keep Looking Up!