Migrating holes help catalysts to be productive
Dig this: Catalysis appears to function because of holes......»»
Hubble finds more black holes than expected in the early universe
With the help of NASA's Hubble Space Telescope, an international team of researchers led by scientists in the Department of Astronomy at Stockholm University has found more black holes in the early universe than has previously been reported. The new.....»»
Astronomers detect black hole "starving" its host galaxy to death
Astronomers have used the NASA/ESA James Webb Space Telescope to confirm that supermassive black holes can starve their host galaxies of the fuel they need to form new stars. The results are reported in the journal Nature Astronomy......»»
Stephen Hawking Was Wrong—Extremal Black Holes Are Possible
For decades, a black hole that has as much spin or charge as it can given it mass was considered mathematically impossible. A new proof reveals otherwise......»»
Can AI talk us out of conspiracy theory rabbit holes?
New research published in Science shows that for some people who believe in conspiracy theories, a fact-based conversation with an artificial intelligence (AI) chatbot can "pull them out of the rabbit hole." Better yet, it seems to keep them out for.....»»
The legacy of corn nitrogen fertilizer: Study shows lengthy impact in tile drained systems
Midwestern soils are among the most productive in the world, thanks in part to extensive tile drainage systems that remove excess water from crop fields. But water isn't the only thing flowing through tile drains. Nitrogen moves along with soil water.....»»
Researchers solve long-standing mystery of alumina surface structure
Aluminum oxide (Al2O3), also known as alumina, corundum, sapphire, or ruby, is one of the best insulators used in a wide range of applications: in electronic components, as a support material for catalysts, or as a chemically resistant ceramic, to na.....»»
Development strategies for using carbon-based catalysts in CO₂ conversion
One of the primary drivers of climate change, CO2 emissions, has reached over 35 million tons worldwide. With global annual temperatures still rising, reducing CO2 emissions has become a necessity. To turn this necessity into an opportunity, research.....»»
Chromium doping enhances catalyst performance for faster oxygen evolution
A group of researchers has made significant progress in developing cost-effective catalysts for the oxygen evolution reaction (OER), a critical component in technologies such as water splitting and metal-air batteries......»»
eBook: Keep assets secure after cloud migration
Organizations sometimes need to plan their cloud migrations with more emphasis on security and compliance. Many, therefore, struggle to keep their data safe after migrating to the cloud. To illustrate, IBM revealed that 82% of data breaches in 2023 i.....»»
Green hydrogen: MXenes show talent as catalyst for oxygen evolution reaction
The MXene class of materials has many talents. An international team led by HZB chemist Michelle Browne has now demonstrated that MXenes, properly functionalized, are excellent catalysts for the oxygen evolution reaction in electrolytic water splitti.....»»
Theoretical model for multisite alloy catalyst design quantifies active site contributions
Two research teams have developed a novel theoretical model to describe the overall activity of multisite alloy catalysts. In their study published in Journal of the American Chemical Society, they propose a concept of equivalent site ratio and succe.....»»
Hubble and Chandra find supermassive black hole duo
Like two Sumo wrestlers squaring off, the closest confirmed pair of supermassive black holes have been observed in tight proximity. These are located approximately 300 light-years apart and were detected using NASA's Hubble Space Telescope and the Ch.....»»
New Mo carbide catalysts show high stability and activity in CO₂ conversion
Molybdenum (Mo) carbides, known for their unique electronic and structural properties, are considered promising alternatives to noble metal catalysts in heterogeneous catalysis. However, traditional methods for preparing Mo carbides suffer from compl.....»»
Massive merger: Study reveals evidence for origin of supermassive black hole at galaxy"s center
The origins of aptly named supermassive black holes—which can weigh in at more than a million times the mass of the sun and reside in the center of most galaxies—remain one of the great mysteries of the cosmos......»»
Why are black holes stable against their own gravity?
Neutron stars are timelike matter with a maximum mass of about 2.34 solar masses in quantum chromodynamics (the strong color force). Black holes are spacelike matter that have no maximum mass, but a minimum mass of 2.35 solar masses. Indeed, black ho.....»»
Developing bird migration tracking with call detection technology
A research team primarily based at New York University (NYU) has achieved a breakthrough in ornithology and artificial intelligence by developing an end-to-end system to detect and identify the subtle nocturnal calls of migrating birds......»»
Gravitational wave observatories could detect primordial black holes speeding through the solar system
Cosmologists have long hypothesized that the conditions of the early universe could have caused the formation of black holes not long after the Big Bang. These "primordial black holes" have a much wider mass range than those that formed in the later.....»»
James Webb is explaining the puzzle of some of the earliest galaxies
Webb has been causing bafflement in the field of cosmology. But the problem isn't that the universe is broken - it's that early black holes were playing tricks......»»
Supercomputer simulations reveal the nature of turbulence in black hole accretion disks
Researchers at Tohoku University and Utsunomiya University have made a breakthrough in understanding the complex nature of turbulence in structures called accretion disks surrounding black holes, using state-of-the-art supercomputers to conduct the h.....»»
Dark matter could have helped make supermassive black holes in the early universe
It takes a long time for supermassive black holes, like the one at the center of our Milky Way galaxy, to form. Typically, the birth of a black hole requires a giant star with the mass of at least 50 of our suns to burn out—a process that can take.....»»