On July 11, 2015, NASA's interplanetary space probe New Horizons sent back a pretty cool image of dwarf planet Pluto - just one of many revealing pictures of everyone's favorite demoted planet. This photo intrigued scientists and space enthusiasts alike due to the distinct surface markings it showed, most notably the four circular(ish) spots along the bottom border of the visible surface. What are Pluto's spots? Why are they so dark? What are they made of and why are they there?
Perhaps these and more mysteries of Pluto will be revealed in due time, but for now, what's most important is that we decide which of the Pluto dark spots are the best. Is it the strong and most shapely one on the far left? Is it the creative and sassy second spot, with its unique shape? Or is it the darkest and most mysterious spot, that one on the far right that you can barely even see?
Cast your votes for the best Pluto spots below and take a moment to think about how Pluto's moon, Charon, has a dark spot at its pole, and whether Jupiter's red spot is even that impressive anymore, now that these four cuties are in your life.All photo credits go to NASA, because who else is even capable of this kind of photography?