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Arc of Ice and Light

Saturn’s rings are made of billions of discrete particles of ice and dust, marshalled by the mathematics of gravity and momentum into thousands of concentric bands. Most of them look neat, regular, and ordered. Then there’s the F Ring. Circling

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Venus Approach

With all the attention on Mars and Mercury the past few days, here’s a previously unpublished view of Venus. I constructed this sequence from raw images taken in ultraviolet light by the Venus Monitoring Camera on board the Venus Express

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Moon Flight

animation of frames from GRAIL showing the lunar surface

The twin GRAIL probes are circling low over the moon, studying its internal structure by measuring slight distortions in its gravitational field. The spacecraft also carry cameras as part of the MoonKAM (Moon Knowledge Acquired by Middle school students) project,

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Sweeping the Rings

ripples

On Sunday, the robotic spacecraft Cassini in orbit around Saturn swept close by the planet and snapped hundreds of pictures of the rings as it passed. Here’s a very short video of what it saw. To learn more about what

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The Saturn System: Up Close and in Motion

Credit: NASA/JPL/Space Science Institute

Some views of the ever-shifting Saturn system, all sent by Cassini during the past few days.Credit: NASA/JPL/SSI Animation by Bill Dunford We have a treasure trove of spectacular vistas this week from Cassini at Saturn. All of these raw images

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