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Categories: Geoscience: Volcanoes, Space: Structures and Features
Published Climate change will transform cooling effects of volcanic eruptions
(via sciencedaily.com) Researchers have shown that human-caused climate change will have important consequences for how volcanic gases interact with the atmosphere.
Published Minor volcanic eruptions could ‘cascade’ into global catastrophe
(via sciencedaily.com) Researchers call for a shift in focus away from risks of 'super-volcanic' eruptions and towards likelier scenarios of smaller eruptions in key global 'pinch points' creating devastating domino effects.
Published Sea levels influence eruptions on volcanic island
(via sciencedaily.com) The rise and fall of sea levels influence the likelihood of volcanic eruptions on the Greek island of Santorini, new research has discovered. Analyzing the timings of eruptions over hundreds of thousands of years, the researchers found that a 40 meter fall in sea level is a crucial point beyond which eruptions are more likely to occur. The findings could have implications for millions of people living on volcanic islands around the world.
Published Scientists observe gas re-accretion in dying galaxies for the first time
(via sciencedaily.com) A new study suggests that previously displaced gases can re-accrete onto galaxies, potentially slowing down the process of galaxy death caused by ram pressure stripping, and creating unique structures more resistant to its effects.
Published Giant friction experiment at Kilauea volcano
(via sciencedaily.com) A new analysis of the 2018 collapse of Kilauea volcano's caldera helps to confirm the reigning scientific paradigm for how friction works on earthquake faults. The model quantifies the conditions necessary to initiate the kind of caldera collapse that sustains big, damaging eruptions of basaltic volcanoes like Kilauea and could help to inform forecasting and mitigation.
Published New study reveals previously unseen star formation in Milky Way
(via sciencedaily.com) A new survey of our home galaxy, the Milky Way, combines the capabilities of the Very Large Array and the Effelsberg telescope in Germany to provide astronomers with valuable new insights into how stars much more massive than the Sun are formed.
Published SuperBIT: A low-cost balloon-borne telescope to rival Hubble
(via sciencedaily.com) Astronomersand engineers are building a new kind of astronomical telescope. SuperBIT flies above 99.5% of the Earth's atmosphere, carried by a helium balloon the size of a football stadium. The telescope will make its operational debut next April and when deployed should obtain high-resolution images rivaling those of the Hubble Space Telescope.
Published Cosmic rays help supernovae explosions pack a bigger punch
(via sciencedaily.com) The final stage of cataclysmic explosions of dying massive stars, called supernovae, could pack an up to six times bigger punch on the surrounding interstellar gas with the help of cosmic rays, according to a new study.
Published Galactic fireworks: New ESO images reveal stunning features of nearby galaxies
(via sciencedaily.com) A team of astronomers has released new observations of nearby galaxies that resemble colourful cosmic fireworks. The images, obtained with the European Southern Observatory's Very Large Telescope (ESO's VLT), show different components of the galaxies in distinct colours, allowing astronomers to pinpoint the locations of young stars and the gas they warm up around them.
Published Huge volcanic eruption disrupted climate but not human evolution
(via sciencedaily.com) A massive volcanic eruption in Indonesia about 74,000 years ago likely caused severe climate disruption in many areas of the globe, but early human populations were sheltered from the worst effects, according to a new study.
Published Supervolcano fed from Earth's mantle caused crustal plates to rotate
(via sciencedaily.com) The plates of the Earth's crust perform complicated movements that can be attributed to quite simple mechanisms. That is the short version of the explanation of a rift that began to tear the world apart over a length of several thousand kilometers 105 million years ago.
Published New radio receiver opens wider window to radio universe
(via sciencedaily.com) Researchers have used the latest wireless technology to develop a new radio receiver for astronomy. The receiver is capable of capturing radio waves at frequencies over a range several times wider than conventional ones, and can detect radio waves emitted by many types of molecules in space at once. This is expected to enable significant progresses in the study of the evolution of the Universe and the mechanisms of star and planet formation.
Published To predict underwater volcano eruptions, scientist looks at images from space
(via sciencedaily.com) Original source A new study monitored satellite images to obtain sea discoloration data as a novel indicator in detecting if an underwater volcano's eruption is imminent.
Published Like a molten pancake
(via sciencedaily.com) Original source Why magma flowed along a curved pathway during the 2018 eruption of a Galapagos volcano is explained by a new model.
Published Sculpted by starlight: A meteorite witness to the solar system's birth
(via sciencedaily.com) Scientists knew a burst of UV light left its mark on our solar system. Now they know the source of that light.
Published Observation, simulation, and AI join forces to reveal a clear universe
(via sciencedaily.com) Astronomers have developed a new artificial intelligence (AI) technique to remove noise in astronomical data due to random variations in galaxy shapes. After extensive training and testing on large mock data created by supercomputer simulations, they then applied this new tool to actual data from Japan's Subaru Telescope and found that the mass distribution derived from using this method is consistent with the currently accepted models of the Universe.
Published Hunting dark energy with gravity resonance spectroscopy
(via sciencedaily.com) Researchers demonstrate a robust experimental technique for studying one particular theory for dark energy. Named 'Gravity Resonance Spectroscopy,' their approach could bring researchers a step closer to understanding one of the greatest mysteries in cosmology.
Published The Goldilocks Supernova
(via sciencedaily.com) Scientists have discovered the first convincing evidence for a new type of stellar explosion -- an electron-capture supernova. While they have been theorized for 40 years, real-world examples have been elusive. They are thought to arise from the explosions of massive super-asymptotic giant branch (SAGB) stars, for which there has also been scant evidence.
Published Throwing an 'axion bomb' into a black hole challenges fundamental law of physics
(via sciencedaily.com) New research shows how the fundamental law of conservation of charge could break down near a black hole.
Published Cosmic hand hitting a wall
(via sciencedaily.com) Motions of a remarkable cosmic structure have been measured for the first time, using NASA's Chandra X-ray Observatory. The blast wave and debris from an exploded star are seen moving away from the explosion site and colliding with a wall of surrounding gas.