Carl Sagan has an asteroid named after him, as does his wife Ann Druyan. The two asteroids are in companion orbits, symbolic of their namesakes’ love and admiration for one another. (via @exploreplanets)
We all look up and see the same Moon, but where you are on the planet affects how you see it. If you live in the southern hemisphere and then travel to the north (or vice versa), the Moon will look upside-down compared to what you’re used to. (via @exploreplanets)