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Categories: Engineering: Nanotechnology, Offbeat: Space

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

Brightest gamma-ray burst ever observed reveals new mysteries of cosmic explosions      (via sciencedaily.com) 

Scientists believe the gamma-ray emission, which lasted over 300 seconds, is the birth cry of a black hole, formed as the core of a massive and rapidly spinning star collapses under its own weight.

Energy: Technology Engineering: Nanotechnology Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Highly charged ions melt nano gold nuggets      (via sciencedaily.com)     Original source 

Shooting ions is very different from shooting a gun: By firing highly charged ions onto tiny gold structures, these structures can be modified in technologically interesting ways. Surprisingly, the key is not the force of impact, but the electric charge of the projectiles.

Chemistry: Biochemistry Chemistry: Organic Chemistry Engineering: Nanotechnology
Published

Biomolecules: Trying nanometer measurement for size      (via sciencedaily.com)     Original source 

As part of a comparative international study, researchers have successfully tested and validated a method of investigating dynamic protein structures.

Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Energy: Alternative Fuels Energy: Fossil Fuels Engineering: Nanotechnology
Published

Probe where the protons go to develop better fuel cells      (via sciencedaily.com)     Original source 

Researchers have uncovered the chemical inner-workings of an electrolyte they developed for a new generation of solid oxide fuel cells. To uncover the location of the proton-introduction reaction, the team studied extensively the hydration reaction of their scandium-substituted barium zirconate perovskite through a combination of synchrotron radiation analysis, large-scale simulations, machine learning, and thermogravimetric analysis. The new data has the potential to accelerate the development of more efficient fuel cells.

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

Redness of Neptunian asteroids sheds light on early Solar System      (via sciencedaily.com) 

Asteroids sharing their orbits with the planet Neptune have been observed to exist in a broad spectrum of red color, implying the existence of two populations of asteroids in the region, according to a new study by an international team of researchers.

Chemistry: Biochemistry Chemistry: Inorganic Chemistry Engineering: Graphene Engineering: Nanotechnology Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
Published

Nanophysics: The right twist      (via sciencedaily.com) 

Stacked layers of ultrathin semiconductor materials feature phenomena that can be exploited for novel applications. Physicists have studied effects that emerge by giving two layers a slight twist.

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

Temperature of a rocky exoplanet measured      (via sciencedaily.com) 

An international team of researchers has used NASA's James Webb Space Telescope to measure the temperature of the rocky exoplanet TRAPPIST-1 b. The measurement is based on the planet's thermal emission: heat energy given off in the form of infrared light detected by Webb's Mid-Infrared Instrument (MIRI). The result indicates that the planet's dayside has a temperature of about 500 kelvins (roughly 450 degrees Fahrenheit) and suggests that it has no significant atmosphere.

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

Artificial intelligence discovers secret equation for 'weighing' galaxy clusters      (via sciencedaily.com) 

Astrophysicists have leveraged artificial intelligence to uncover a better way to estimate the mass of colossal clusters of galaxies. The AI discovered that by just adding a simple term to an existing equation, scientists can produce far better mass estimates than they previously had. The improved estimates will enable scientists to calculate the fundamental properties of the universe more accurately, the astrophysicists have reported.

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

Surprisingly simple explanation for the alien comet 'Oumuamua's weird orbit      (via sciencedaily.com) 

When the first interstellar comet ever seen in our solar system was discovered in 2017, one characteristic -- an unexplained acceleration away from the sun -- sparked wild speculation, including that it was an alien spacecraft. An astrochemist found a simpler explanation and tested it with an astronomer: in interstellar space, cosmic rays converted water to hydrogen in the comet's outer layers. Nearing the sun, outgassed hydrogen gave the tiny comet a kick.

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

Semiconductor lattice marries electrons and magnetic moments      (via sciencedaily.com) 

A model system created by stacking a pair of monolayer semiconductors is giving physicists a simpler way to study confounding quantum behavior, from heavy fermions to exotic quantum phase transitions.

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

Searching for life with space dust      (via sciencedaily.com) 

Following enormous collisions, such as asteroid impacts, some amount of material from an impacted world may be ejected into space. This material can travel vast distances and for extremely long periods of time. In theory this material could contain direct or indirect signs of life from the host world, such as fossils of microorganisms. And this material could be detectable by humans in the near future, or even now.

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

Hunting Venus 2.0: Scientists sharpen their sights      (via sciencedaily.com) 

With the first paper compiling all known information about planets like Venus beyond our solar system, scientists are the closest they've ever been to finding an analog of Earth's 'twin.'

Engineering: Nanotechnology Space: Exploration Space: General
Published

Ultra-lightweight multifunctional space skin created to withstand extreme conditions in space      (via sciencedaily.com) 

A new nano-barrier coating could help protect ultra-lightweight carbon composite materials from extreme conditions in space, according to a new study.

Chemistry: Biochemistry Chemistry: General Chemistry: Organic Chemistry Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Space Space: Exploration Space: General Space: The Solar System
Published

Uracil found in Ryugu samples      (via sciencedaily.com) 

Samples from the asteroid Ryugu collected by the Hayabusa2 mission contain nitrogenous organic compounds, including the nucleobase uracil, which is a part of RNA.

Chemistry: General Chemistry: Inorganic Chemistry Energy: Batteries Engineering: Nanotechnology
Published

Batteries: Passivation layer mystery solved      (via sciencedaily.com) 

In our daily lives, lithium-ion batteries have become indispensable. They function only because of a passivation layer that forms during their initial cycle. As researchers found out via simulations, this solid electrolyte interphase develops not directly at the electrode but aggregates in the solution. Their findings allow the optimization of the performance and lifetime of future batteries.

Chemistry: General Chemistry: Inorganic Chemistry Engineering: Nanotechnology Offbeat: Computers and Math Offbeat: General
Published

'Inkable' nanomaterial promises big benefits for bendable electronics      (via sciencedaily.com) 

An international team of scientists is developing an inkable nanomaterial that they say could one day become a spray-on electronic component for ultra-thin, lightweight and bendable displays and devices.

Energy: Nuclear Offbeat: General Offbeat: Space Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics Space: Astrophysics Space: General Space: Structures and Features
Published

Scientists find a common thread linking subatomic color glass condensate and massive black holes      (via sciencedaily.com) 

Atomic nuclei accelerated close to the speed of light become dense walls of gluons known as color glass condensate (CGC). Recent analysis shows that CGC shares features with black holes, enormous conglomerates of gravitons that exert gravitational force across the universe. Both gluons in CGC and gravitons in black holes are organized in the most efficient manner possible for each system's energy and size.

Chemistry: Biochemistry Chemistry: Organic Chemistry Engineering: Nanotechnology
Published

'Fishing' for biomarkers      (via sciencedaily.com) 

Researchers have devised a tiny, nano-sized sensor capable of detecting protein biomarkers in a sample at single-molecule precision. Fittingly coined as 'hook and bait,' a tiny protein binder fuses to a small hole created in the membrane of a cell -- known as a nanopore ­-- which allows ionic solution to flow through it. When the sensor recognizes a targeted molecule, the ionic flow changes. This change in flow serves as the signal from the sensor that the biomarker has been found.

Chemistry: Biochemistry Engineering: Nanotechnology
Published

Nanotechnology could treat lymphedema      (via sciencedaily.com) 

When lymphatic vessels fail, typically their ability to pump out the fluid is compromised. Researchers have now developed a new treatment using nanoparticles that can repair lymphatic vessel pumping. Traditionally, researchers in the field have tried to regrow lymphatic vessels, but repairing the pumping action is a unique approach.