The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
The roar that we hear when we place a seashell next to our ear is not the ocean, but rather the sound of blood surging through the veins in the ear.
476
In 1992, 29,000 rubber ducks washed off a ship. They were found thousands of miles away 8 years later.
707
The Caspian Sea is also classed as the world's largest lake.
52
There was once an undersea post office in the Bahamas.
241
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46