Ligeia Mare is twice the area of Lake Michigan in the US Measurements of a big sea on Titan, a moon of Saturn, show that it contains about 9,000 cubic km of mostly liquid methane. This huge volume is equivalent, say scientists, to about 40 times the proven reserves of oil and gas on Earth. The extraordinary thing is that Ligeia Mare is only the second largest hydrocarbon sea on Titan . The body of liquid methane known as Kraken is perhaps five times as big. “What you’re talking about here is essentially liquefied natural gas,” explained Randy Kirk from the US Geological Survey (USGS). “People ask me if you could bring it to Earth, and that’s a dumb idea on many levels. But what you might not realise is that there […]