Shepherd Moons

The Cassini site has a lot of cool features and images up these days. There’s lots of excitement about Wednesday’s close 30-mile flyby above Enceladus.

But I like this image illustrating the two moons Pandora (left, outer) and Prometheus (right, inner)  herding the F-ring. If a space explorer were standing on either moon she would feel almost weightless. But these moons do a good job maintaining a narrow stream of ice and dust, even in if it does show a few clumps and kinks.

Cassini’s targeted passes over the poles of the large moon Titan can bend the probe’s orbit to pass higher above the rings, hence this view taken from a 45-degree angle.

About catholicsensibility

Todd lives in Minnesota, serving a Catholic parish as a lay minister.
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