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Saturn's above the planet's sweeping rings.


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Saturn's icy Moon Enceladus above the planet's sweeping rings.
Saturn's icy Moon Enceladus above the planet's sweeping rings.

Solar Astronomers Getting Better at Predicting Solar Wind .

Researchers have discovered that the structure of the Sun's lower atmosphere, or chromosphere, can be used to predict the speed and intensity of solar winds - the stream of electrified gas constantly blowing off the Sun. This was unexpected, because the solar wind comes from the corona, or outer layer, while the chromosphere is much deeper into the Sun. By learning how to predict the strength and speed of the solar wind, scientists will be able to protect electrical equipment, satellites and space explorers.

Enceladus Above Saturn's Rings.

Cassini recently took this image of Saturn's icy Moon Enceladus above the planet's sweeping rings. Although the rings are made largely of ice, they've become dirty because of contamination from meteoritic dust gathered over hundreds of millions of years. Enceladus, on the other hand, looks comparatively pristine. There must be some process that continues to resurface Enceladus, to keep it from turning the same dusty colour.

Weather Satellite Launches After Several Delays.

A weather satellite for the National Oceanic and Atmospheric Administration (NOAA) was launched atop a Boeing Delta II rocket on Thursday, after several days of delays. The Delta II and its NOAA-18 cargo blasted off from Vandenberg Air Force Base in California at 1022 UTC (6:22 am EDT). The satellite separated from its booster approximately 65 minutes later. Flight controllers confirmed that the satellite has entered its proper polar orbit, and deployed its solar array boom and antennas.

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