Astronomy, physics, and mathematics are intimately linked, so wishing everyone Happy Pi Day. The day is also special because it is Albert Einstein’s birthday – Happy Birthday, Uncle Albert!

http://www.nj.com/mercer/index.ssf/2015/03/princeton_celebrates_special_pi_day_with_litany_of.html

This year is particularly special because 3/14/15 at 9:26:53 has the first 10 digits of pi. This year also marks the 100th anniversary of Einstein’s Theory of General Relativity, which is the geometric theory of gravitation.

https://www.astronomyhouston.org/forum/viewtopic.php?f=6&t=534

What did you do today?