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  Paleontologists are searching for how carnivorous dinosaurs went from pipsqueaks to titans. Herrerasaurus skeleton replica at a special exhibition of the Naturmuseum Senckenberg (Wi (Wiki Commons / Eva K)   The names alone are imposing. Take Tyrannosaurus, the tyrant lizard; Torvosaurus, the savage lizard; or Giganotosaurus, the giant southern lizard. These monstrous carnivores dominate our imaginations, movies and museum halls, and no...
  Explosion from Santiaguito volcano (image: @Paul_A_Wallace/twitter)   INSIVUMEH recorded a white fumarole in Caliente dome that rose 9,842 ft (3,000 m) above the summit. Surveillance cameras observed weak explosions that generated a dark ash plume which reached approx. 11,483 ft (3,500 m) above the summit and drifted SW. Material is ejected above the crater and caused weak avalanches of material on the south, southeast and southwest flanks of...
  Discolored water around the Kavachi volcano Image: @CultureVolcan/twitter   Satellite data showed discolored water around the volcano beginning in January 2020. The discolored plumes became more frequent, dense, and stretched for longer distances. On 25 April, a satellite image showed a plume in the water extending about 15 km long and spread over an approximate area of 30 square kilometers. A small brown circle about 50,000 square meters in area indicated...
  The world's largest glaciers are losing ice far faster than they can replenish it. This map shows the amount of ice gained or lost by Antarctica between 2003 and 2019. Dark reds and purples show large average rates of ice loss near the coasts, while blues show smaller rates of ice gain in the interior. (Image: © Smith et al./Science)   Two new satellite images remind us that Earth's ice sheets are losing so much mass it is becoming obvious from...