Intense wildfires in western Canada have sent huge plumes of smoke sweeping across North America in recent days — pollution that has been captured in images by NASA satellites, aircraft and ...

Make plans to stare at the sky tonight, because a total lunar eclipse is happening in just a few short hours. The moon will gradually turn deep shades of rusty red throughout totality, thus ...

SAN FRANCISCO— Conservation groups sued the National Marine Fisheries Service today for failing to meet its deadline to determine if the tope shark warrants protection under the Endangered Species Act ...