Hidden world of undersea volcanoes & lava flows discovered off Italian coast
Earth's crust is literally tearing apart to form this volcanic seascape
A 10-million-pound undersea cable just set an internet speed record
Breaking down, by the numbers, a new submarine data-transfer accomplishment
Undersea power cable soldiers on despite WWII bombs
Unexploded bombs, mines, ordinances & downed aircraft are scattered at the bottom of the sea