The Earth of 3.2 billion years ago was a "water world" of submerged continents, geologists say after analyzing oxygen isotope data from ancient ocean crust that's now exposed on land in Australia...
Scientist studying ancient crystals in a Spanish cave have discovered disconcerting evidence that shows just how high sea levels can rise in a warmer climate. 4.4 million years ago, one of your...
The Vikings have been reputed to be remarkable seafarers who would confidently head into unexplored waters. Now a team of researchers from Hungary and Sweden claim to have a clue as to how the Norse...