The scientists at NASA aren't just specialists at putting nuclear-powered cars on Mars. When the space agency isn't busy being awesome on other planets, it's inventing the technology that keeps your plane from icing up, or inventing the technology in your Brita water filter, or even inventing the technology that helps your tyres last thousands of kilometres more than they should.
WTFNASA? is the site, and it asks the very simple question: What the fuck has NASA done to make your life awesome?
Hitting the button gives you a new and interesting fact about the things that NASA have done to make your life just a little bit better through science.