Designs for secondary coverage: I love this because it incorporates a lot of information with just the right amount of visual elements. We could morph this into a really cool spread on virtually any topic. Love the limited color palette
Super Massive Black Holes by PHD Comics. Sagittarius A*, the super massive black hole at the center of the Milky Way, has a mass million times the mass of our sun, and a diameter equal to the distance between the sun and Mercury.