Titan dark spot may be large lake
Researchers have long speculated that Titan might harbour open bodies of liquid methane - and the 235km by 75km target is the best candidate to date. But they are being cautious about interpreting the feature, which has what looks to be a smooth shoreline. The scientists say the object could simply be dark, solid deposits caught in a sinkhole of volcanic caldera.
2005-06-29
Moon Cassini Titan Saturn methane lake
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