As Carl Sagan memorably reminds us, we're not leaving Earth anytime soon. But as Carl Sagan also memorably reminds us, that's no reason not to keep learning about how we could leave Earth for other worlds someday. That's what NASA's Kepler Mission is about: identifying other planets in distant solar systems -- some of which might be Earthlike. Kepler has already identified 1,235 candidate systems using an orbiting telescope, and this infographic shows all of them to scale with our own pale blue dot.
Read More »