The blobfish went viral with this photo, but underwater they look like a completely different fish. They sustain tissue damage when they're brought from the ocean's depths to the surface.

A new type of underwater robot has made it possible to peer deep inside the USS Arizona, the sunken naval battleship that was bombed 75 years ago at Pearl Harbor, Hawaii. The remotely-operated ...

Russia has attacked the Ukrainian city of Kharkiv with bombs, missiles and drones, killing at least three people. Meanwhile, Kyiv and Moscow are expected to swap 500 prisoners of war this weekend.