Question #1966

Geek Question of the Day: Whenever possible I try to focus on the good things going on in this crazy world of ours, which is why I'm turning towards science tonight as I ask you; What are some of your favorite (relatively) recent scientific discoveries and why do they stand out for you? I'd say anything in the last few years qualifies but I'll leave it up to you on that front. Otherwise pretty much any topic is fair game!

Image source: