Ardoin Yacht Design and U-Boat Worx submarines have collaborated on the perfect companion for U-Boat's one, two or three person submarines. The Deep Blue catamaran can carry the submarine and 12 ...

The latest test lasted 179 seconds and according to Deep Blue it achieved 10 out of 11 flight objectives. Unfortunately, no. 11 was landing. That didn't come off so well.

On the east coast of Egypt's Sinai Peninsula, a few miles north of the city of Dahab, is a diving and snorkeling site known as the Blue Hole.Every day, divers make the journey from Dahab by jeep ...

The 20 charts that make up The Cambridge Star Atlas 2000.0 show the sky in multiple colors: Stars are black, the Milky Way is blue, star clusters are yellow, nebulae are green, and galaxies are red.