Earth's magnetic field, which protects the planet from harmful blasts of solar radiation, is much older than scientists had previously thought. This invisible, protective shield likely existed shortly after the planet formed; a finding that could shed light on why Earth is habitable and Mars is not. Earth's magnetic field helped make life on the planet possible. Without our magnetic field, solar winds would strip away the planet's atmosphere and oceans.
Get ready for an intergalactic (ok, maybe intragalactic) adventure! Pop Chart Lab has distilled more than half a century of space travel into a beautiful print. The Chart of Cosmic Exploration features hand-illustrated renderings of every orbiter, lander, rover, flyby, and impactor to ever successfully slip the surly bonds of Earth's orbit. Plus all of our pretty-cool planets in our pretty-great Solar System. #colossal