Why Do We Have Leap Years? Let Neil deGrasse Tyson Explain

We welcome any excuse to listen to The Neil talk about science:


Short answer: Math. And physics. And astronomy. Or some combination of them all.

(via National Geographic)

About Hemant Mehta

Hemant Mehta is the editor of Friendly Atheist, appears on the Atheist Voice channel on YouTube, and co-hosts the uniquely-named Friendly Atheist Podcast. You can read much more about him here.