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Categories: Geoscience: Landslides, Space: Structures and Features
Published Alien planet found spiraling to its doom around an aging star
(via sciencedaily.com) The condemned planet could help answer questions about the fate of other worlds as their solar systems evolve.
Published Webb Space Telescope reveals previously shrouded newborn stars
(via sciencedaily.com) Astronomers took a 'deep dive' into one of the first images from NASA's James Webb Space Telescope and were rewarded with a surprising discovery: telltale signs of two dozen previously unseen young stars about 7,500 light years from Earth.
Published Astronomers find that two exoplanets may be mostly water
(via sciencedaily.com) Astronomers have found evidence that two exoplanets orbiting a red dwarf star are 'water worlds,' planets where water makes up a large fraction of the volume.
Published Machine learning reveals how black holes grow
(via sciencedaily.com) Black holes are surrounded by an invisible layer that swallows every bit of evidence about their past. Researchers are now using machine learning and supercomputers to reconstruct the growth histories of black holes.
Published ESPRESSO and CARMENES discover two potentially habitable exo-Earths around a star near the sun
(via sciencedaily.com) Researchers have discovered the presence of two planets with Earth-like masses in orbit around the star GJ 1002, a red dwarf not far from our solar system. Both planets are in the habitability zone of the star.
Published Discovering rare red spiral galaxy population from early universe with the James Webb Space Telescope
(via sciencedaily.com) Morphology of galaxies contain important information about the process of galaxy formation and evolution. With its state-of-the-art resolution, NASA's James Webb Space Telescope has now captured several red spiral galaxies in its first image at an unprecedented resolution. Researchers have now analyzed these galaxies, revealing that these are among the furthest known spiral galaxies till date. The analysis further detected a passive red spiral galaxy in the early universe, a surprising discovery.
Published Antihelium nuclei as messengers from the depths of the galaxy
(via sciencedaily.com) How are galaxies born, and what holds them together? Astronomers assume that dark matter plays an essential role. However, as yet it has not been possible to prove directly that dark matter exists. A research team has now measured the survival rate of antihelium nuclei from the depths of the galaxy -- a necessary prerequisite for the indirect search for Dark Matter.
Published Without more data, a black hole's origins can be 'spun' in any direction
(via sciencedaily.com) A study finds that, for now, the catalog of known black hole binaries does not reveal anything fundamental about how black holes form. More data will be needed to determine whether the invisible giants arose from a quiet galactic disk or a more dynamic cluster of stars.
Published NASA missions probe game-changing cosmic explosion
(via sciencedaily.com) On Dec. 11, 2021, astronomers detected a blast of high-energy light from the outskirts of a galaxy around 1 billion light-years away. The event has rattled scientists' understanding of gamma-ray bursts (GRBs), the most powerful events in the universe.
Published Meteorites plus gamma rays could have given Earth the building blocks for life
(via sciencedaily.com) Even as detailed images of distant galaxies from the James Webb Space Telescope show us more of the greater universe, scientists still disagree about how life began here on Earth. One hypothesis is that meteorites delivered amino acids -- life's building blocks -- to our planet. Now, researchers have experimentally shown that amino acids could have formed in these early meteorites from reactions driven by gamma rays produced inside the space rocks.
Published Peekaboo! Tiny, hidden galaxy provides a peek into the past
(via sciencedaily.com) Peeking out from behind the glare of a bright foreground star, astronomers have uncovered the most extraordinary example yet of a nearby galaxy with characteristics that are more like galaxies in the distant, early universe. Only 1,200 light-years across, the tiny galaxy HIPASS J1131-31 has been nicknamed "Peekaboo" because of its emergence in the past 50-100 years from behind the fast-moving star that was obscuring astronomers' ability to detect it.
Published Researchers say space atomic clocks could help uncover the nature of dark matter
(via sciencedaily.com) Studying an atomic clock on-board a spacecraft inside the orbit of Mercury and very near to the Sun could be the trick to uncovering the nature of dark matter.
Published Characterizing the earliest galaxies in the universe -- only 200 million years after the Big Bang
(via sciencedaily.com) An international team of astrophysicists has managed to statistically characterize the first galaxies in the Universe, which formed only 200 million years after the Big Bang.
Published New analysis approach could help boost sensitivity of large telescopes
(via sciencedaily.com) Researchers detail an analysis method that could improve telescopes at the Simons Observatory by evaluating their performance before installation. This is the first time the optical performance of a telescope has been confirmed prior to its deployment.
Published Study shows landbuilding, site of freshwater diversion
(via sciencedaily.com) Supporters of the large-scale Mississippi River sediment diversions currently being planned by the Louisiana Coastal Protection and Restoration Authority got a boost to their case recently when scientists published an analysis of two existing freshwater diversions on the state's coastline, one of which shows a significant amount of land having formed over the past 17 years.
Published Landslide risk remains years after even a weak earthquake
(via sciencedaily.com) Satellite observations have revealed that weak seismic ground shaking can trigger powerful landslide acceleration -- even several years after a significant earthquake.
Published Rare sighting of luminous jet spewed by supermassive black hole
(via sciencedaily.com) Astronomers discover a bright optical flare caused by a dying star's encounter with a supermassive black hole.
Published Mysteriously bright flash is a black hole jet pointing straight toward Earth, astronomers say
(via sciencedaily.com) Astronomers have determined the source of an incredibly bright X-ray, optical and radio signal appearing from halfway across the Universe.
Published Non-detection of key signal allows astronomers to determine what the first galaxies were -- and weren't -- like
(via sciencedaily.com) Researchers have been able to make some key determinations about the first galaxies to exist, in one of the first astrophysical studies of the period in the early Universe when the first stars and galaxies formed, known as the cosmic dawn.
Published Astrophysicists hunt for second-closest supermassive black hole
(via sciencedaily.com) As massive as the black hole at the center of the Milky Way, the behemoth is hosted by a dwarf galaxy less than 1 million light-years away. Invisible so far -- maybe not for long.