article_snippet: With its thick atmosphere and organic-rich chemistry, Titan resembles a frozen version of Earth several billion years ago, before life began pumping oxygen into our atmosphere.
article_snippet: Because Titan is smaller than Earth, Titan gravity doesn’t hold onto Titan gaseous envelope as tightly, so the atmosphere extends 370 miles (595 kilometres) into space.
article_snippet: As on Earth, the climate is driven mostly by changes in the amount of sunlight that comes with the seasons, although the seasons on Titan are about seven Earth years long.
article_snippet: Titan's ‘water’ is liquid methane, CH4, better known on Earth as natural gas.
article_snippet: Regular Earth-water, H2O, would be frozen solid on Titan where the surface temperature is -180°C (-292°F).
article_snippet: With Titan's low gravity and dense atmosphere, methane raindrops could grow twice as large as Earth's raindrops.