NASA has discovered eight new planets that may exist in the “habitable zone” of the stars that they rotate. That is, these exoplanets are located just far away from their stars to host liquid water and possibly life. In honor of the discovery, NASA’s Jet Propulsion Laboratory has released some very cool, retro travel posters for three of the eight planets.
Kepler-16b (above), “Where your shadow always has company” – This planet orbits a pair of stars and has double sunsets just like planet “Tatooine” in Star Wars.
HD 40307g, “Experience the Gravity of a Super Earth” – This planet is two times the volume of Earth, but has eight times the mass, which means it has much stronger gravity.
Kepler-186f, “Where the Grass is Always Redder on the Other Side” – This Earth-sized planet rotates a reddish star, so if it has grass, it won’t be green.