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Categories: Physics: General, Space: The Solar System

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Physics: General Physics: Optics Physics: Quantum Physics
Published

Widely tuneable terahertz lasers boost photo-induced superconductivity in K3C60      (via sciencedaily.com)     Original source 

Researchers have long been exploring the effect of using tailored laser drives to manipulate the properties of quantum materials away from equilibrium. One of the most striking demonstrations of these physics has been in unconventional superconductors, where signatures of enhanced electronic coherences and super-transport have been documented in the resulting non-equilibrium states. However, these phenomena have not yet been systematically studied or optimized, primarily due to the complexity of the experiments. Technological applications are therefore still far removed from reality. In a recent experiment, this same group of researchers discovered a far more efficient way to create a previously observed metastable, superconducting-like state in K3C60 using laser light.

Engineering: Graphene Physics: General
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Scientists discover 'flipping' layers in heterostructures to cause changes in their properties      (via sciencedaily.com)     Original source 

Transition metal dichalcogenide (TMD) semiconductors are special materials that have long fascinated researchers with their unique properties. For one, they are flat, one-atom-thick two-dimensional (2D) materials similar to that of graphene. They are compounds that contain different combinations of the transition metal group (e.g., molybdenum, tungsten) and chalcogen elements (e.g., sulfur, selenium, tellurium).

Space: Astronomy Space: Exploration Space: General Space: The Solar System
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Removal of magnetic spacecraft contamination within extraterrestrial samples easily carried out, researchers say      (via sciencedaily.com)     Original source 

By demonstrating that spaceflight doesn’t adversely affect the magnetism of moon rocks, researchers underscore the exciting potential of studying the magnetic histories stored in these samples.

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

Researchers capture first-ever afterglow of huge planetary collision in outer space      (via sciencedaily.com)     Original source 

A chance social media post by an eagle-eyed amateur astronomer sparked the discovery of an explosive collision between two giant planets, which crashed into each other in a distant space system 1,800 light years away from planet Earth.

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

'Starquakes' could explain mystery signals      (via sciencedaily.com)     Original source 

Fast radio bursts, or FRBs, are an astronomical mystery, with their exact cause and origins still unconfirmed. These intense bursts of radio energy are invisible to the human eye, but show up brightly on radio telescopes. Previous studies have noted broad similarities between the energy distribution of repeat FRBs, and that of earthquakes and solar flares. However, new research has looked at the time and energy of FRBs and found distinct differences between FRBs and solar flares, but several notable similarities between FRBs and earthquakes. This supports the theory that FRBs are caused by 'starquakes' on the surface of neutron stars. This discovery could help us better understand earthquakes, the behavior of high-density matter and aspects of nuclear physics.

Chemistry: Biochemistry Chemistry: Inorganic Chemistry Physics: General Physics: Optics
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Bringing out the color in zinc      (via sciencedaily.com)     Original source 

Researchers have synthesized a zinc complex based on two zinc centers that absorbs visible light. They demonstrated that this capability depends on the proximity of the zinc ions, where the complex responds to visible light when the zinc atoms are closer. This new property is expected to expand the utility of zinc, which already offers advantages including biological relevance, cost effectiveness, and low toxicity.

Physics: General
Published

X-rays reveal microstructural fingerprints of 3D-printed alloy      (via sciencedaily.com)     Original source 

Researchers took a novel approach to explore the way microstructure emerges in a 3D-printed metal alloy: They bombarded it with X-rays while the material was being printed.

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

Source of electron acceleration and X-ray aurora of Mercury local chorus waves detected      (via sciencedaily.com)     Original source 

Observations during two flybys by the Mio spacecraft as part of the BepiColombo International Mercury Exploration Project have revealed that chorus waves occur quite locally in the dawn sector of Mercury. Mercury's magnetic field is about 1% of that of Earth, and it was unclear whether chorus waves would be generated like on Earth. The present study reveals that the chorus waves are the driving source of Mercury's X-ray auroras, whose mechanism was not understood.

Chemistry: Biochemistry Engineering: Robotics Research Physics: General Physics: Quantum Physics
Published

Unifying matter, energy and consciousness      (via sciencedaily.com)     Original source 

Understanding the interplay between consciousness, energy and matter could bring important insights to our fundamental understanding of reality.

Chemistry: Biochemistry Chemistry: Inorganic Chemistry Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Ionic crystal generates molecular ions upon positron irradiation, finds new study      (via sciencedaily.com)     Original source 

The interaction between solid matter and positron (the antiparticle of electron) has provided important insights across a variety of disciplines, including atomic physics, materials science, elementary particle physics, and medicine. However, the experimental generation of positronic compounds by bombardment of positrons onto surfaces has proved challenging. In a new study, researchers detect molecular ion desorption from the surface of an ionic crystal when bombarded with positrons and propose a model based on positronic compound generation to explain their results.

Space: General Space: Structures and Features Space: The Solar System
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Astronomers discover first step toward planet formation      (via sciencedaily.com)     Original source 

Astronomers have gotten very good at spotting the signs of planet formation around stars. But for a complete understanding of planet formation, we also need to study examples where planet formation has not yet started. Looking for something and not finding it can be even more difficult than finding it sometimes, but new detailed observations of the young star DG Taurus show that it has a smooth protoplanetary disk without signs of planet formation. This successful non-detection of planet formation may indicate that DG Taurus is on the eve of planet formation.

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

Twisted science: New quantum ruler to explore exotic matter      (via sciencedaily.com)     Original source 

Researchers have developed a 'quantum ruler' to measure and explore the strange properties of multilayered sheets of graphene, a form of carbon. The work may also lead to a new, miniaturized standard for electrical resistance that could calibrate electronic devices directly on the factory floor, eliminating the need to send them to an off-site standards laboratory.   

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

Scientists discover the highest energy gamma-rays ever from a pulsar      (via sciencedaily.com)     Original source 

Scientists have detected the highest energy gamma rays ever from a dead star called a pulsar. The energy of these gamma rays clocked in at 20 tera-electronvolts, or about ten trillion times the energy of visible light. This observation is hard to reconcile with the theory of the production of such pulsed gamma rays, as the international team reports.

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

Plot thickens in hunt for ninth planet      (via sciencedaily.com)     Original source 

A pair of theoretical physicists are reporting that the same observations inspiring the hunt for a ninth planet might instead be evidence within the solar system of a modified law of gravity originally developed to understand the rotation of galaxies.

Biology: Biochemistry Biology: Cell Biology Biology: Evolutionary Biology: General Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Physics: General Space: Cosmology Space: General
Published

New 'Assembly Theory' unifies physics and biology to explain evolution and complexity      (via sciencedaily.com)     Original source 

An international team of researchers has developed a new theoretical framework that bridges physics and biology to provide a unified approach for understanding how complexity and evolution emerge in nature. This new work on 'Assembly Theory' represents a major advance in our fundamental comprehension of biological evolution and how it is governed by the physical laws of the universe.

Computer Science: Quantum Computers Mathematics: General Mathematics: Modeling Physics: General Physics: Quantum Computing Physics: Quantum Physics
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Machine learning used to probe the building blocks of shapes      (via sciencedaily.com)     Original source 

Applying machine learning to find the properties of atomic pieces of geometry shows how AI has the power to accelerate discoveries in maths.

Space: General Space: The Solar System
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A prehistoric cosmic airburst preceded the advent of agriculture in the Levant      (via sciencedaily.com)     Original source 

Agriculture in Syria started with a bang 12,800 years ago as a fragmented comet slammed into the Earth’s atmosphere. The explosion and subsequent environmental changes forced hunter-gatherers in the prehistoric settlement of Abu Hureyra to adopt agricultural practices to boost their chances for survival.

Offbeat: General Offbeat: Space Space: Astronomy Space: Exploration Space: General Space: The Solar System
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Large mound structures on Kuiper belt object Arrokoth may have common origin      (via sciencedaily.com)     Original source 

A new study posits that the large, approximately 5-kilometer-long mounds that dominate the appearance of the larger lobe of the pristine Kuiper Belt object Arrokoth are similar enough to suggest a common origin. The study suggests that these “building blocks” could guide further work on planetesimal formational models.

Physics: General Physics: Optics
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Lasers deflected using air      (via sciencedaily.com)     Original source 

Using a novel method, beams of laser light can be deflected using air alone. An invisible grating made only of air is not only immune to damage from the laser light, but it also preserves the original quality of the beam.

Chemistry: Biochemistry Chemistry: Inorganic Chemistry Physics: General Physics: Optics
Published

Intense lasers shine new light on the electron dynamics of liquids      (via sciencedaily.com)     Original source 

The behavior of electrons in liquids is crucial to understanding many chemical processes that occur in our world. Using advanced lasers that operate at the attosecond, a team of international researchers has revealed further insights into how electrons behave in liquids.