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Categories: Physics: General, Space: Astrophysics

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Engineering: Graphene Engineering: Nanotechnology Physics: General Physics: Optics
Published

Ultrafast lasers map electrons 'going ballistic' in graphene, with implications for next-gen electronic devices      (via sciencedaily.com)     Original source 

Research reveals the ballistic movement of electrons in graphene in real time. The observations could lead to breakthroughs in governing electrons in semiconductors, fundamental components in most information and energy technology.

Space: Astronomy Space: Astrophysics Space: Cosmology Space: Exploration Space: General Space: Structures and Features
Published

New red galaxies turn out to be already known blue galaxies      (via sciencedaily.com)     Original source 

Not all discoveries turn out to be actual new discoveries. This was the case for the extremely red objects (EROs) found in James Webb Space Telescope (JWST) data. Analysis shows that they are very similar to blue-excess dust obscured galaxies (BluDOGs) already reported in Subaru Telescope data.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Cosmology Space: Exploration Space: General Space: Structures and Features
Published

Astronomers discover first population of binary stripped stars      (via sciencedaily.com)     Original source 

Astronomers have discovered a population of massive stars that have been stripped of their hydrogen envelopes by their companions in binary systems. The findings shed light on the hot helium stars that are believed to be the origins of hydrogen-poor core-collapse supernovae and neutron star mergers.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Cosmology Space: General Space: Structures and Features
Published

Reaching for the (invisible) stars      (via sciencedaily.com)     Original source 

Supernovae -- stellar explosions as bright as an entire galaxy -- have fascinated us since time immemorial. Yet, there are more hydrogen-poor supernovae than astrophysicists can explain. Now, scientists may have found the missing precursor star population.

Energy: Nuclear Physics: General
Published

Newly developed material gulps down hydrogen, spits it out, protects fusion reactor walls      (via sciencedaily.com)     Original source 

A recent advance could enable more efficient compact fusion reactors that are easier to repair and maintain.

Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
Published

A promising pairing: Scientists demonstrate new combination of materials for quantum science      (via sciencedaily.com)     Original source 

For the first time, scientists publish results on a new chip composed of diamond and lithium niobate. The results demonstrate the combination as a promising candidate for quantum devices.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Cosmology Space: Exploration Space: General Space: Structures and Features
Published

Unexpected chemistry reveals cosmic star factories' secrets      (via sciencedaily.com)     Original source 

Two galaxies in the early universe, which contain extremely productive star factories, have been studied by a team of scientists. Using powerful telescopes to split the galaxies' light into individual colors, the scientists were amazed to discover light from many different molecules -- more than ever before at such distances. Studies like this could revolutionize our understanding of the lives of the most active galaxies when the universe was young, the researchers believe.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: Structures and Features Space: The Solar System
Published

Tiniest free-floating brown dwarf      (via sciencedaily.com)     Original source 

Brown dwarfs are objects that straddle the dividing line between stars and planets. They form like stars, growing dense enough to collapse under their own gravity, but they never become dense and hot enough to begin fusing hydrogen and turn into a star. At the low end of the scale, some brown dwarfs are comparable with giant planets, weighing just a few times the mass of Jupiter.

Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Thermodynamics Physics: General
Published

Ultra-hard material to rival diamond discovered      (via sciencedaily.com)     Original source 

Scientists have solved a decades-long puzzle and unveiled a near unbreakable substance that could rival diamond, as the hardest material on earth, a study says. Researchers found that when carbon and nitrogen precursors were subjected to extreme heat and pressure, the resulting materials -- known as carbon nitrides -- were tougher than cubic boron nitride, the second hardest material after diamond.

Offbeat: General Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Hallmark quantum behavior in bouncing droplets      (via sciencedaily.com)     Original source 

In a study thatĀ could help fill some holes in quantum theory, the team recreated a 'quantum bomb tester' in a classical droplet test.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: The Solar System
Published

14-inch spacecraft delivers new details about 'hot Jupiters'      (via sciencedaily.com)     Original source 

The Colorado Ultraviolet Transit Experiment (CUTE) spacecraft is about the size of a cereal box. It has also recorded incredibly detailed measurements of the atmospheres of planets hundreds of light-years from Earth.

Engineering: Nanotechnology Physics: General Physics: Optics
Published

Chance twists ordered carbon nanotubes into 'tornado films'      (via sciencedaily.com)     Original source 

Scientists have developed two new methods to create ordered carbon nanotube films with either a left- or right-handed chiral pattern.

Physics: General Physics: Optics
Published

Hybrid device significantly improves existing, ubiquitous laser technology      (via sciencedaily.com)     Original source 

Researchers have developed a chip-scale laser source that enhances the performance of semiconductor lasers while enabling the generation of shorter wavelengths. This pioneering work represents a significant advance in the field of photonics, with implications for telecommunications, metrology, and other high-precision applications.

Chemistry: Inorganic Chemistry Chemistry: Thermodynamics Engineering: Nanotechnology Physics: General Physics: Optics
Published

Polaritons open up a new lane on the semiconductor highway      (via sciencedaily.com)     Original source 

On the highway of heat transfer, thermal energy is moved by way of quantum particles called phonons. But at the nanoscale of today's most cutting-edge semiconductors, those phonons don't remove enough heat. That's why researchers are focused on opening a new nanoscale lane on the heat transfer highway by using hybrid quasiparticles called 'polaritons.'

Chemistry: General Energy: Nuclear Physics: General Space: Astrophysics Space: Exploration Space: General Space: Structures and Features
Published

Ancient stars made extraordinarily heavy elements      (via sciencedaily.com)     Original source 

How heavy can an element be? An international team of researchers has found that ancient stars were capable of producing elements with atomic masses greater than 260, heavier than any element on the periodic table found naturally on Earth. The finding deepens our understanding of element formation in stars.

Chemistry: Inorganic Chemistry Engineering: Nanotechnology Physics: General Physics: Optics Physics: Quantum Physics
Published

Bowtie resonators that build themselves bridge the gap between nanoscopic and macroscopic      (via sciencedaily.com)     Original source 

Two nanotechnology approaches converge by employing a new generation of fabrication technology. It combines the scalability of semiconductor technology with the atomic dimensions enabled by self-assembly.

Space: Astrophysics Space: Cosmology Space: Exploration Space: General Space: Structures and Features
Published

Stellar winds regulate growth of galaxies      (via sciencedaily.com)     Original source 

Galactic winds enable the exchange of matter between galaxies and their surroundings. In this way, they limit the growth of galaxies, that is, their star formation rate. Although this had already been observed in the local universe, an international research team has just revealed the existence of the phenomenon in galaxies which are more than 7 billion years old and actively forming stars, the category to which most galaxies belong. The team's findings thus show this is a universal process.

Computer Science: General Computer Science: Quantum Computers Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Diamonds and rust help unveil 'impossible' quasi-particles      (via sciencedaily.com)     Original source 

Researchers have discovered magnetic monopoles -- isolated magnetic charges -- in a material closely related to rust, a result that could be used to power greener and faster computing technologies.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: General Space: Structures and Features Space: The Solar System
Published

Unlocking neutron star rotation anomalies: Insights from quantum simulation      (via sciencedaily.com)     Original source 

A collaboration between quantum physicists and astrophysicists has achieved a significant breakthrough in understanding neutron star glitches. They were able to numerically simulate this enigmatic cosmic phenomenon with ultracold dipolar atoms. This research establishes a strong link between quantum mechanics and astrophysics and paves the way for quantum simulation of stellar objects from Earth.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Cosmology Space: Exploration Space: General Space: Structures and Features
Published

Astronomers determine the age of three mysterious baby stars at the heart of the Milky Way      (via sciencedaily.com)     Original source 

Through analysis of high-resolution data from a ten-meter telescope in Hawaii, researchers have succeeded in generating new knowledge about three stars at the very heart of the Milky Way. The stars proved to be unusually young with a puzzling chemical composition that surprised the researchers.