After orbiting the ringed planet for nine years, NASA's Cassini probe has managed to snag video of a super storm on the celestial body's north pole.

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But, she says, it is still unclear if liquid on the surface of Titan is in the form of puddles, lakes or oceans although the arrival of a spacecraft called Cassini in 2004 might solve the mystery when it drops a probe into Titan's atmosphere.

ECONOMIST: Comparative meteorology