Cassini, the craft, was about 72,000 kilometers (44,700 miles) away from Iapetus when it snapped this up-close image of the pockmarked moon.
NASA's Cassini spacecraft zoomed in to take detailed pictures and other measurements of one of Saturn's weirdest moons.
Saturn's bicolored moon, snowy white on one side and coal-black on the other, has puzzled astronomers for three centuries. Planetologists now think they have it all figured out.
Astronomers now know the secret of this moon's strange two-faced appearance, but it's still remarkable to watch the "now you see it, now you don't" performance as it moves around Saturn.
Saturn's black-and-white moon has mystified astronomers for centuries. Finally, however, they're learning what a bizarre place it truly is.
In Arthur C. Clarke's novel 2001: A Space Odyssey, the spaceship Discovery heads to Saturn's enigmatic moon Iapetus in search of ET (in the movie, Discovery instead ventures to Jupiter). In real life, NASA's Cassini spacecraft flew by Iapetus for another reason: to provide answers to an enduring mystery: Why is the leading hemisphere as…
Cassini finally encounters Saturn's wacky moon Iapetus today. Don't wait for the processed pics to be released. Check out the raw images now!
Saturn's two-faced moon hosts extraordinary avalanches that cascade much longer than they should. Figuring out what makes them flow might help scientists better understand landslides on Earth.
Now that scientists have puzzled out this moon's yin-yang appearance, they're tackling the cause of its out-of-round shape, slow spin, and bizarre equatorial ridge.