The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
There was once an undersea post office in the Bahamas.
241
Two dogs were among the Titanic survivors.
262
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
More than a dozen men have stood on the surface of the moon, but only three have been to Challenger Deep in the Marianas Trench, the deepest known spot in the ocean.
17
Water is actually naturally blue.
48
NYC's Metropolitan Transit Authority (MTA) dumps old subway cars into the ocean to serve as artificial reef.
8
The time interval from first sighting of the iceberg that sank the Titanic to impact was a little over 30 seconds.
105