Matt Martin announced his retirement Tuesday after 16 NHL seasons, all but two with the New York Islanders, a departure that leaves the league with only a few players who take the ice without a visor.

Matt Martin announced his retirement Tuesday after 16 NHL seasons, all but two with the New York Islanders, a departure that leaves the league with only a few players who take the ice without a visor.

A deep-sea expedition to one of Earth's most remote island chains has surfaced stunning pictures of the vibrant ecosystems surrounding hydrothermal vents that scientists didn't even know were there.