Titan and Rhea


Titan and RheaSaturn’s two largest moons, Titan and Rhea, seem to be stacked together in this true-color picture taken by the Cassini spacecraft. This view looks toward the Saturn-facing side of Rhea. North on Rhea is up and rotated 35 degrees to the right.

Separate images taken with red, green and blue filters using Cassini‘s narrow-angle camera were combined to create this natural-color view. The spacecraft was approximately 1.8 million km away from Rhea and 2.5 million km from Titan.

Image Credit: NASA

Land of Lakes


Titan is the only body in the Solar System other than the Earth with stable areas of liquid on its surface.

Video Credit: NASA

Titan’s Southern Vortex


Titan_SouthernVortexThose of us who follow the Cassini mission are used to seeing pictures containing multiple moons of Saturn. That’s what I thought this was when I first saw it, but that small crescent isn’t a moon. It’s the storm vortex around Titan’s south pole. Its sunlit edge stands out distinctly against the darkness of the moon’s unilluminated hazy atmosphere. Cassini spacecraft images of the vortex have led scientists to conclude that its clouds form at a very high altitude—where the Sun has not yet set—above the surrounding haze near the moon’s surface.

Image Credit: NASA

The Seasons Change on Titan


Titan_IRThis false-color picture was assembled from infrared data collected by the Cassini spacecraft. It show the differences in the composition of surface materials around hydrocarbon lakes at Titan, Saturn’s largest moon. With the Sun now shining on Titan’s northern hemisphere, the weather will be changing, and Cassini will be watching.

Learn more here.

Image Credit: NASA

Not a Solar Eclipse


titanbusy_cassini_960No, it’s not a solar eclipse. It’s a picture of the rings and a couple of the moons of Saturn. The large object near the center is Titan, Saturn’s largest moon and one of the most interesting objects in the entire Solar System. The central dark spot is the body of the moon. The bright halo is atmospheric haze above Titan. The gases of the atmosphere scatter sunlight. Saturn’s rings are shown nearly edge on. Enceladus, a small moon, is at about 4 or 5 o’clock at the edge of Titan.

This image was taken with the Cassini spacecraft’s camera pointing almost directly at the Sun, so the surfaces of Titan and Enceladus appear in silhouette, and the rings of Saturn look like a photographic negative.

Image Credit: NASA