When you shuffle a deck of cards, odds are you've assembled something that no one else has ever assembled, or ever will again. We take a walk around the world and suck droplets from the ocean to discuss the bewildering mathematics of a deck of cards. Then, we've got the scoop on the first image of a black hole, which is expected to be released sometime this year. Also, you have a keen ability to sense when a person is sick—whether through sight or smell. We'll dig into the sense you didn't know you had. And, finally, we play Nate's science metaphor game. Hopefully, we didn't embarrass ourselves.