Showing 20 articles starting at article 461
< Previous 20 articles Next 20 articles >
Categories: Energy: Alternative Fuels, Space: Cosmology
Published Catalyst purifies herbicide-tainted water and produces hydrogen
(via sciencedaily.com) 
Researchers have developed a dual-purpose catalyst that purifies herbicide-tainted water while also producing hydrogen.
Published Ultracool dwarf binary stars break records
(via sciencedaily.com) 
Astrophysicists have discovered the tightest ultracool dwarf binary system ever observed. The two stars are so close that it takes them less than one Earth day to revolve around each other. In other words, each star's 'year' lasts just 17 hours.
Published AI draws most accurate map of star birthplaces in the Galaxy
(via sciencedaily.com) 
Scientists identified about 140,000 molecular clouds in the Milky Way Galaxy from large-scale data of carbon monoxide molecules, observed in detail by the Nobeyama 45-m radio telescope. Using artificial intelligence, the researchers estimated the distance of each of these molecular clouds to determine their size and mass, successfully mapping the distribution of the molecular clouds in the Galaxy in the most detailed manner to date.
Published Galactic explosion offers astrophysicists new insight into the cosmos
(via sciencedaily.com) 
Using data from the James Webb Space Telescope's first year of interstellar observation, an international team of researchers was able to serendipitously view an exploding supernova in a faraway spiral galaxy.
Published Astronomers discover metal-rich galaxies in early universe
(via sciencedaily.com) 
While analyzing data from the first images of a well-known early galaxy taken by NASA's James Webb Space Telescope (JWST), astronomers discovered a companion galaxy previously hidden behind the light of the foreground galaxy -- one that surprisingly seems to have already hosted multiple generations of stars despite its young age, estimated at 1.4 billion years old.
Published Corralling ions improves viability of next generation solar cells
(via sciencedaily.com) 
Researchers have discovered that channeling ions into defined pathways in perovskite materials improves the stability and operational performance of perovskite solar cells. The finding paves the way for a new generation of lighter, more flexible, and more efficient solar cell technologies suitable for practical use.
Published New discovery sheds light on very early supermassive black holes
(via sciencedaily.com) 
Astronomers have discovered a rapidly growing black hole in one of the most extreme galaxies known in the very early Universe. The discovery of the galaxy and the black hole at its center provides new clues on the formation of the very first supermassive black holes.
Published Unusual atom helps in search for Universe's building blocks
(via sciencedaily.com) 
An unusual form of caesium atom is helping a research team unmask unknown particles that make up the Universe.
Published Discovery of massive early galaxies defies prior understanding of the universe
(via sciencedaily.com) 
Six massive galaxies discovered in the early universe are upending what scientists previously understood about the origins of galaxies in the universe.
Published James Webb spots super old, massive galaxies that shouldn't exist
(via sciencedaily.com) 
A team of international researchers have identified six candidate galaxies that existed roughly 500 to 700 million years after the Big Bang and are about as big as the modern Milky Way Galaxy -- a feat that scientists didn't think was possible.
Published Salt could play key role in energy transition
(via sciencedaily.com) 
A common ingredient -- salt -- could have a big role to play in the energy transition to lower carbon energy sources. A study describes how large underground salt deposits could serve as hydrogen holding tanks, conduct heat to geothermal plants, and influence CO2 storage. It also highlights how industries with existing salt expertise, such as solution mining, salt mining, and oil and gas exploration, could help.
Published Nanoparticles self-assemble to harvest solar energy
(via sciencedaily.com) 
Researchers design a solar harvester with enhanced energy conversion capabilities. The device employs a quasiperiodic nanoscale pattern, meaning most of it is an alternating and consistent pattern, while the remaining portion contains random defects that do not affect its performance. The fabrication process makes use of self-assembling nanoparticles, which form an organized material structure based on their interactions with nearby particles without any external instructions. Thermal energy harvested by the device can be transformed to electricity using thermoelectric materials.
Published Perovskites, a 'dirt cheap' alternative to silicon, just got a lot more efficient
(via sciencedaily.com) 
Researchers typically synthesize perovskites in a wet lab, and then apply the material as a film on a glass substrate and explore various applications. A team has instead proposes a novel, physics-based approach, using a substrate of either a layer of metal or alternating layers of metal and dielectric material -- rather than glass.
Published Physicists solve durability issue in next-generation solar cells
(via sciencedaily.com) 
Physicists jumped a major hurdle standing in the way of the commercialization of solar cells created with halide perovskites as a lower-cost, higher-efficiency replacement for silicon when generating electricity from the sun.
Published How to make hydrogen straight from seawater -- no desalination required
(via sciencedaily.com) 
Researchers have developed a cheaper and more energy-efficient way to make hydrogen directly from seawater, in a critical step towards a truly viable green hydrogen industry. The new method splits the seawater directly into hydrogen and oxygen -- skipping the need for desalination and its associated cost, energy consumption and carbon emissions.
Published Research reveals thermal instability of solar cells but offers a bright path forward
(via sciencedaily.com) 
Researchers reveal the thermal instability that happens within the cells' interface layers, but also offers a path forward towards reliability and efficiency for halide perovskite solar technology.
Published HETDEX reveals galaxy gold mine in first large survey
(via sciencedaily.com) 
The Hobby-Eberly Telescope Dark Energy Experiment (HETDEX) announced their first publicly released catalog of astronomical objects. Over 200,000 astronomical objects including distant stars and galaxies have been mapped in 3D for the first time. Astronomers will use the data to better determine the Hubble constant, used to gauge the expansion of the universe. Possible 'naked black hole' early highlight of science results from HETDEX survey. TACC systems Corral, Stampede2, and Maverick were used in the data analysis and storage. Data publicly available through JupyterHub notebooks.
Published 'Game-changing' findings for sustainable hydrogen production
(via sciencedaily.com) 
Hydrogen fuel could be a more viable alternative to traditional fossil fuels, according to University of Surrey researchers who have found that a type of metal-free catalysts could contribute to the development of cost-effective and sustainable hydrogen production technologies.
Published Footprints of galactic immigration uncovered in Andromeda galaxy
(via sciencedaily.com) 
Astronomers have uncovered striking new evidence for a mass migration of stars into the Andromeda Galaxy. Intricate patterns in the motions of stars reveal an immigration history very similar to that of the Milky Way.
Published Star formation in distant galaxies by the James Webb Space Telescope
(via sciencedaily.com) 
Thanks to the James Webb Space Telescope's first images of galaxy clusters, researchers have, for the very first time, been able to examine very compact structures of star clusters inside galaxies, so-called clumps.