October 13, 2017 Mysterious upside-down canyon revealed on underside of Antarctic ice A mysterious world of upside-down canyons crisscrosses the underbelly of Antarctica's ice shelves.
October 11, 2017 Volcanoes kill about 540 people a year, scientists say The closer you get to an active volcano, the better your odds of dying if it erupts.
September 28, 2017 Historic gem: World's largest flawless diamond up for auction A 163.41-carat D flawless diamond, described as the largest ever put up for auction, was unveiled in Hong Kong on Thursday.
September 27, 2017 World's largest flawless diamond ever to be auctioned will be unveiled this week A 163-carat D flawless diamond, described as the largest ever put up for auction, will be unveiled in Hong Kong on Thursday.
September 27, 2017 Estonia is about to get a little taller Over the next three months, the Baltic country of Estonia will become a little bit taller.
September 26, 2017 91 volcanoes discovered under Antarctic ice sheet Scientists have found a range of 91 volcanoes under a huge ice sheet in West Antarctica.
July 5, 2017 Massive lava stream exploding into ocean in Hawaii A dramatic "firehose" stream of molten lava continued to shoot out of a sea cliff Wednesday on Hawaii Island, splashing into the Pacific Ocean below and exploding upon impact.
June 27, 2017 This volcano-shaped pyramid in Peru has experts stumped From far away, El Volcán in the Nepeña Valley of coastal Peru might look like a natural feature in the landscape.
June 26, 2017 Federal 2017 quake forecast highlights Oklahoma, California Federal scientists forecast that Oklahoma will continue to have the nation's biggest man-made earthquake problem this year but it probably won't be as shaky as recent years.
June 26, 2017 After new regulations, Oklahoma's earthquakes calm down a bit The rate of earthquakes in Oklahoma has dropped dramatically since late May, when the state limited wastewater injections into energy wells, an Associated Press statistical analysis shows. And a new scientific study says the state is on its way back to calmer times that prevailed before a huge jump in man-made quakes.