Popsugar Living Science News Facts That Will Surprise You 10 Mind-Boggling Facts That You Probably Don't Know February 12, 2018 by Nicole Yi View On One Page Photo 9 of 10 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 9 We've only explored less than five percent of the ocean. The ocean covers more than 70 percent of the Earth, and 95 percent of it still remains unseen by us. Previous Next Start Slideshow Science NewsRedditFun Facts