Mount Mayon has spewed lava up to 600 meters (2,000 feet) high at times Tuesday and early Wednesday and its ash plumes stretched up to 5 kilometers (3 miles) above the crater. Lava flows in two gullies had advanced down the volcano's slopes more than a kilometer (.6 miles) and pyroclastic flows -- superheated gas and volcanic debris -- had reached 5 kilometers (3 miles) from the crater in one area, the Philippine Institute of Volcanology and Seismology said Wednesday morning.
This image shows a well-preserved impact crater. A closeup view highlights distinctive bright lines and spots on the steep slope on the north side. No such pattern was visible when HiRISE imaged this crater 5 years ago (2.6 Martian years ago), in March 2008. The discontinuous bright spots indicate bouncing, thus these features are interpreted to be a result of boulders bouncing and rolling down the slope. Where did the boulders come from?
Some bombs can help create life. A rich mix of rare saline water species have been found thriving in ponds formed in second world war bomb craters in Hungary. As the number of natural inland ponds dramatically drops throughout Europe due to agricultural land drainage and urbanisation, this discovery backs the case for the inclusion of human-made habitats into conservation initiatives. "These'wartime scars' might be unnatural, but still can be regarded as valuable bioreserves – just like sunken warships or submarines scattered in the ocean that turned into coral reefs giving refugee to many species," says Csaba Vad of aquatic ecosystem research centre WasserCluster Lunz in Austria, who led the research. A series of miscalculated aerial bombings aimed at a local airport helped to create more than a hundred ponds near the village of Apaj in central Hungary.
The Mars Curiosity rover was initially launched from Cape Canaveral, an American Air Force station in Florida, on November 26, 2011. In late January, 2018, the Curiosity team on Earth received copious new images from the rover through a record-setting relay by Nasa's Maven orbiter, surpassing a gigabit of data during a single relay session from Mars for the first time in history. Nasa's Jet Propulsion Laboratory in Pasadena, California, released this image as a single panoramic shot, which gives an overview of the rover's path along the crater's outer edge. The image features a number of key features spotted by the rover on its travels.
Observations from the Dawn spacecraft have shown a crater wall becoming icier as the sun's position changed in the sky over the course of six months, indicating that subsurface ice particles may be lofted up into the air and land on the wall like dew. On the steep wall of Juling crater in Ceres's southern hemisphere, ice has been found to be increasing in the height of summer. During summer days on Ceres, sunlight hits the bottom of the crater but the wall remains mostly shrouded in cold shadows. "It's only getting a few degrees warmer than during other seasons," says Raymond. "But it's enough to sublimate some of this ice that's just below the surface." In Juling crater, the pool of sunlight at the crater's bottom has a similar effect, turning ice into water vapour.