What If We Found Life on Jupiter's Moon Europa?

Europa. The icy moon of Jupiter. A frigid world with surface temperatures that would turn you into an astronaut popsicle. And an atmosphere that would take your breath away. Literally. Because Europa's atmosphere is so thin, it's almost non-existent. And, while it's mostly made of oxygen, this kind of oxygen isn't breathable for you. But despite all that, Europa oceans might be hiding a little secret.