Wired News - July 17, 2007
Quick, think of all the moons in the Solar System that have water ice welling up from within their cores. Sure, there's Enceladus, and I reported recently about Dione and Tethys. Europa's an easy one to remember. But did you ever consider Pluto's icy moon Charon?
Well, astronomers have found ice geysers there too.
According to a new press release from the Gemini Observatory, located atop Mauna Kea, Hawaii, there's strong evidence that Charon is continuously being coated by a thin layer of ammonia hydrates and water ice, welling up from inside the moon.
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