Earth's magnetic field flips every 200,000 to 300,000 years on average, but it's been 780,000 years since the last one.

On an expedition cruise from Darwin to Broome, Erin Florio takes in the epic, ancient landscapes of northwestern Australia ...

Divers in Burgas have mapped and described in detail some of the most interesting underwater sites on the Southern Black Sea coast, the Friends of the Sea – Burgas non-profit association said on ...