Thirty-two will vie for the title, but only one can be the winner. They are the best Earth images of the year, the top 32 from 2013. But which ones will be good enough to survive head-to-head competition? From March 3 through April 4, Earth Observatory readers can vote for their favorite images of the year, whittling the total from 32 to 16 to 8 to 4 to 2 in a tournament of remote sensing science. The competition will be stiff in the four sections — Data, Art, Event, and Photograph — so it is up to you to separate the winners from the losers. Come back each week to vote in the next round and help us choose a winner.