Tag Archives: saturn

Pioneer 10: darkness at the edge of town

The Pioneer anomaly, a long-discussed discrepancy between the expected and actual speeds of the Pioneer spacecraft, has tantalized researchers with the possibility of an exotic new physics. A solution may be close at hand—and even if it supports the standard model, it's pretty amazing.

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Cassini visits Saturn’s oxygenated moon

he Cassini spacecraft has detected atmospheric oxygen on Rhea, a rocky, icy moon orbiting Saturn. 950 miles in diameter (less than half that of our moon), the tiny world is covered with water ice, which likely produces free oxygen as it is bombarded with charged particles from the magnetosphere of its parent planet, Saturn.

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