Neil deGrasse Tyson explains why we have a leap year

Neil deGrasse Tyson explains why we have a leap year February 28, 2016

In this video for National Geographic, astrophysicist and science communicator extraordinaire explains why February 29 comes around only every four years.

Now that Tyson has explained it, we can now wait for creationist Ken Ham to explain why the leap year doesn’t exist.


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