Science | discoveries 5 Most Incredible Discoveries of the Week Greenland has a canyon bigger than the Grand Canyon By Newser Editors Posted Aug 30, 2013 10:34 PM CDT Updated Aug 31, 2013 6:41 AM CDT Copied File photo of Greenland. (Shutterstock) This week's most incredible discoveries include a massive under-ice canyon and the world's biggest fish: Scientists Accidentally Discover Even 'Grander' Canyon: Scientists have—totally by accident—come across a hidden canyon that dwarfs the Grand one. This one, though, has never been seen by humans. It's under the ice of Greenland. Scientists Unearth World's Largest Fish: As far as discoveries go, this one is pretty astounding on three counts: It came about by chance, expanded our knowledge of "gigantism," and revealed the world's largest fish. Hot Find in Norway: an Ancient Sweater: Thanks to melting snow in the Norwegian mountains, archaeologists have uncovered some pretty cool artifacts—including a really well-worn tunic more than 1,600 years old. Even better, it appears to be a hand-me down. This Photo May Be 2nd Ever of Billy the Kid: The world has long had only one authentiicated photo of the notorious Billy the Kid. A New Mexico historian thinks he's found a second. Guys, You're Just as Depressed as Women: Depression might be known more as a women's disease, but new research shows men suffer just as much—only differently. Click for more amazing discoveries. Read These Next New Fox star, 23, misses first day after car troubles. Man accused of killing his daughters might be dead. White House rolls with Trump's 'daddy' nickname. Iran's supreme leader makes first public comments since ceasefire. Report an error