'Ring Rain' Quenches Saturn's Atmosphere

To be honest, we really didn't expect to find it at any of the planets. It was proposed as a theory, with some evidence, at the time of Voyager, but has been relatively ignored since that time. Certainly, we would have looked for this effect at Saturn, if we'd thought it was a likely process, but in addition, the H3+ emission we measured in the paper is very weak. The first detection on the body of the planet was only last year, and it was only though the use of Keck, with its giant bucket-like collectin

Source: http://rss.slashdot.org/~r/Slashdot/slashdotScience/~3/HbnDCa1C9n8/story01.htm

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