Picture of the Day: Saturn's Moons

NASA calls the Cassini-Huygens "one of the most ambitious missions ever launched into space." Decked out with powerful cameras and an array of other instruments, the spacecraft reached Saturn and its moons over six years ago in July 2004. Ever since, it has been sending back images and data.

"Cassini's observations of Saturn's largest moon, Titan, have given scientists a glimpse of what Earth might have been like before life evolved," the NASA website reads. "They now believe Titan possesses many parallels to Earth, including lakes, rivers, channels, dunes, rain, snow, clouds, mountains and possibly volcanoes."

But Titan isn't the only fascinating moon worth studying. Saturn has dozens that vary in size, shape, origin and more. Scientists have, to date, named 53 of Saturn's moons. Above, a photograph of Titan and Tethys taken by the Cassini spacecraft.

You can view a complete archive of photographs from the mission here.

Via TechEBlog; Image: NASA.