Some features of this site are not compatible with your browser. Install Opera Mini to better experience this site.
Two rounds of voting, two rounds of stunning upsets. As we head into round 3, only two of the top eight seeds (#1s and #2s) remain. It is time now to cast your votes for the best of the Earthly 8. Voting ends on April 13 at 9 a.m. U.S. Eastern Time.
To celebrate Earth Observatory’s 20th anniversary and the 50th anniversary of Earth Day, we asked readers to pick our all-time best image. If you want to read more, view a larger version of an image, or see complementary images, click on the image headline.
Click to vote for one image in each pair, then remember to hit “submit your ballot” at the bottom of the page.
View the results.