Schrödinger’s cat

Schrödinger’s cat is 80 years old. Nobody knows whether it’s dead or alive.
(It’s not really its birthday and it’s probably at least a few months older, but never mind.)
http://www.smithsonianmag.com/smart-news/happy-birthday-schrodingers-cat-180957403/?utm_source=smithsoniandaily&utm_medium=email&utm_campaign=20151130-daily&spMailingID=24123532&spUserID=NzQwNDU1OTgyMTkS1&spJobID=700009839&spReportId=NzAwMDA5ODM5S0