"It's quite likely that this moon will now join the ranks of Mars and Jupiter's moon Europa where you might have liquid water - and the biologists could start getting interested in this being a place were life might possibly arise, " enthused Dr Torrence Johnson, a Cassini scientist from Nasa's Jet Propulsion Laboratory in California.

BBC: NEWS | Science/Nature | Saturn moon delights and baffles

The bay sits at the base of a gorse and hawthorn-laden cliff valley, with a half-moon of white sand looking out over the water.

BBC: Mini guide to Cornwall��s beaches

In a section on water in outer space we learn that there is a lake-size layer of ice on the moon's south pole, that Mars once had rivers, that there is steam in the sun's atmosphere.

FORBES: The Story Of Eau

It's often said that we know more about the surface of the Moon or even of Mars than we do about the two-thirds of our planet covered by water.

BBC: A deep sea mission of genuine exploration