It's Neil deGrasse Tyson's birthday. I love this public domain pic of him and Bill Nye doing a selfie with the president:

For Facebook:

Happy birthday, Neil deGrasse Tyson, shown in this public domain photo taking a selfie with Bill Nye and President Obama. https://en.wikipedia.org/wiki/Neil_deGrasse_Tyson 

Twitter: 

Happy birthday, Neil deGrasse Tyson! How can we help you celebrate? @neiltyson 

Thoughts?

Jeff Elder