Scientists identify flank instability at a volcano with history of collapse — ScienceDaily

Landslides caused by the collapse of unstable volcanoes are one of the major dangers of volcanic eruptions. A method to detect long-term movements of these mountains using satellite images could help identify previously overlooked instability at some volcanoes, according to Penn State scientists. “Whenever there is a large volcanic eruption, there is a chance that […]

Scientists identify flank instability at a volcano with history of collapse

Scientists identified flank instability at Pacaya, an active volcano in Guatemala.  Credit: Kirsten Stephens/Penn State Landslides caused by the collapse of unstable volcanoes are one of the major dangers of volcanic eruptions. A method to detect long-term movements of these mountains using satellite images could help identify previously overlooked instability at some volcanoes, according to Penn […]

Rising temperatures lead to collapse of intact permafrost soils — ScienceDaily

Around a quarter of the ground in the northern hemisphere is permanently frozen. These areas are estimated to contain about twice as much carbon as the world’s current atmosphere. New research says that these permafrost soils are not only increasingly thawing out as the Earth becomes warmer, but also releasing that carbon, which accelerates the […]

These photos of the Arecibo Observatory telescope collapse are just heartbreaking

Gut-wrenching pictures and video documented the beginning of the end for one of the world’s most iconic telescopes.  The National Science Foundation’s Arecibo Observatory in Puerto Rico, known for its studies of asteroids and aliens and for its cameo in a James Bond film, collapsed this morning (Dec. 1). The 900-ton platform that hung above […]

Puerto Rico’s Arecibo Observatory ‘not closing’ after collapse

The instrument platform of the Arecibo Observatory telescope falls through the air after cables broke Puerto Rico’s Arecibo Observatory could still have a future after its vast telescope dramatically collapsed this week, US officials said Thursday. The structure was destroyed on Tuesday when its 900-ton receiver platform, which was suspended 450 feet (140 meters) in […]