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Categories: Geoscience: Landslides, Space: Structures and Features
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 Sea-level rise may worsen existing San Francisco Bay Area inequities
(via sciencedaily.com) Researchers examined the number of households unable to pay for damages from coastal flooding to reveal how sea-level rise could threaten the fabric of Bay Area communities over the next 40 years.
Published Coastal wetlands are nature's flood defenses
(via sciencedaily.com) Coastal wetlands -- such as salt marshes -- provide even more flood protection than previously thought, reducing risks to lives and homes in estuaries, a new study reveals. Research showed that wetlands that grow in estuaries can reduce water levels by up to 2 meters and provide protection far inland.
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 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.
Published Researchers trace dust grain's journey through newborn solar system
(via sciencedaily.com) Combining atomic-scale sample analysis and models simulating likely conditions in the nascent solar system, the study revealed clues about the origin of crystals that formed more than 4.5 billion years ago. The findings provide insights into the fundamental processes underlying the formation of planetary systems, many of which are still shrouded in mystery.
Published The Science of tsunamis
(via sciencedaily.com) The word 'tsunami' brings immediately to mind the havoc that can be wrought by these uniquely powerful waves. The tsunamis we hear about most often are caused by undersea earthquakes, and the waves they generate can travel at speeds of up to 250 miles per hour and reach tens of meters high when they make landfall and break. They can cause massive flooding and rapid widespread devastation in coastal areas, as happened in Southeast Asia in 2004 and in Japan in 2011.
Published Hubble data confirms galaxies lacking dark matter
(via sciencedaily.com) The most accurate distance measurement yet of ultra-diffuse galaxy (UDG) NGC1052-DF2 (DF2) confirms beyond any shadow of a doubt that it is lacking in dark matter. The newly measured distance of 22.1 +/-1.2 megaparsecs are based on 40 orbits of NASA's Hubble Space Telescope, with imaging by the Advanced Camera for Surveys and a 'tip of the red giant branch' (TRGB) analysis.
Published How a supermassive black hole originates
(via sciencedaily.com) How do supermassive black holes in the early universe originate? A team led by a theoretical physicist has come up with an explanation: a massive seed black hole that the collapse of a dark matter halo could produce.
Published Dark matter is slowing the spin of the Milky Way's galactic bar
(via sciencedaily.com) Original source For 30 years, astrophysicists have predicted such a slowdown, but this is the first time it has been measured. The researchers say it gives a new type of insight into the nature of dark matter, which acts like a counterweight slowing the spin.
Published Deforestation darkening the seas above world's second biggest reef
(via sciencedaily.com) Converting Central American tropical forests into agricultural land is changing the color and composition of natural material washing into nearby rivers, making it less likely to decompose before it reaches the ocean, a new study has shown.
Published Puerto Rico is prone to more flooding than the island is prepared to handle
(via sciencedaily.com) Puerto Rico is not ready for another hurricane season, let alone the effects of climate change, according to a new study that shows the island's outstanding capacity to produce record-breaking floods and trigger a large number of landslides.
Published Axions could be the fossil of the universe researchers have been waiting for
(via sciencedaily.com) Original source No one knows what happened in the universe for its first 400,000 years, but a new paper suggests discovering the hypothetical particle axion could shed light on the early history of the universe. What's more, current dark matter experiments may have already detected it in its data.