NASA photos capture a strange new crack in a massive Greenland glacier and we're all probably doomed

A mysterious crack has been spreading across a giant Greenland glacier, and it's raising concerns that part of the floating ice shelf could splinter off into the ocean.  That's bad.  Scientists with the NASA field campaign Operation IceBridge recently captured the first photographs of the growing rift while flying over Petermann Glacier, a structure that connects the Greenland ice sheet to the Arctic Ocean. SEE ALSO: NASA photo reveals a startling 300-foot-wide rift in Antarctic Ice Shelf...