15 Things You Don't Know About Outer Space (Infographic). The Saturn one is not strictly true, even if there were a water body large enough for a planet to float in. Let's just say that Saturn's overall density is less than that of liquid water on Earth.
One of three Expedition 37 crew members aboard the International Space Station on Sept. 2013 photographed this high oblique night image showing dozens of major cities and communities on the east coast of the U.
This infrared image from NASA's Spitzer Space Telescope shows the Helix nebula, a cosmic starlet often photographed by amateur astronomers for its vivid colors and eerie resemblance to a giant eye. 36 / 40 Photo by Comets Kick up Dust in Helix Nebula;
Jupiter and Its Two Red Spots June 2010 Jupiter and Its Two Red Spots Gemini North adaptive optics image of Jupiter and its two red spots (which appear white because this is a near-infrared image; in visible light they appear reddish).