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Categories: Energy: Batteries, Space: Astronomy

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

Astrophysical jet caught in a 'speed trap'      (via sciencedaily.com)     Original source 

The microquasar SS 433 stands out as one of the most intriguing objects within our Milky Way. A pair of oppositely directed beams of plasma ('jets') spirals away perpendicularly from the binary systems disk's surface at just over a quarter of the speed of light. The H.E.S.S. observatory in Namibia has now succeeded in detecting very high energy gamma rays from the jets of SS 433, and identifying the exact location within the jets of one of the galaxy's most effective particle accelerators.

Chemistry: Thermodynamics Energy: Alternative Fuels Energy: Batteries Energy: Nuclear Energy: Technology Physics: General
Published

Liquid lithium on the walls of a fusion device helps the plasma within maintain a hot edge      (via sciencedaily.com)     Original source 

Emerging research suggests it may be easier to use fusion as a power source if liquid lithium is applied to the internal walls of the device housing the plasma. Past experiments studied solid lithium coatings and found they could enhance a plasma. The researchers were pleased they could yield similar results with liquid lithium, as it's better suited for use in a large-scale tokamak.

Chemistry: Biochemistry Chemistry: General Energy: Batteries Energy: Technology Environmental: General Geoscience: Geochemistry
Published

Fast-charging lithium battery seeks to eliminate 'range anxiety'      (via sciencedaily.com)     Original source 

Engineers have created a new lithium battery that can charge in under five minutes -- faster than any such battery on the market -- while maintaining stable performance over extended cycles of charging and discharging.

Chemistry: General Energy: Batteries Energy: Fossil Fuels Energy: Technology Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Major climate benefits with electric aircraft      (via sciencedaily.com)     Original source 

Researchers have performed the world's first life cycle assessment (LCA) of an existing, two-seater, all-electric aircraft, with a direct comparison to an equivalent fossil fuel-powered one. According to the study, after just one quarter of the expected lifespan of the electric aircraft, the climate impact is lower than that of the fossil fuel-based aircraft, provided that green electricity is used. The downside, however, is increased mineral resource scarcity.

Computer Science: General Energy: Batteries Energy: Technology
Published

Self-powered sensor automatically harvests magnetic energy      (via sciencedaily.com)     Original source 

Researchers have designed a self-powering, battery-free, energy-harvesting sensor. Using the framework they developed, they produced a temperature sensor that can harvest and store the energy from the magnetic field that exists in the open air around a wire.

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

Lightest black hole or heaviest neutron star? MeerKAT uncovers a mysterious object in Milky Way      (via sciencedaily.com)     Original source 

An international team of astronomers have found a new and unknown object in the Milky Way that is heavier than the heaviest neutron stars known and yet simultaneously lighter than the lightest black holes known.

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

Moon rocks with unique dust found      (via sciencedaily.com)     Original source 

A research team has for the first time discovered anomalous meter-sized rocks on the lunar surface that are covered in dust and presumably exhibit unique properties -- such as magnetic anomalies. These findings help to understand the processes that form and change the lunar crust.

Chemistry: Biochemistry Chemistry: General Chemistry: Organic Chemistry Energy: Batteries Energy: Technology Environmental: General Geoscience: Earth Science Geoscience: Geochemistry
Published

Next-generation batteries could go organic, cobalt-free for long-lasting power      (via sciencedaily.com)     Original source 

In the switch to 'greener' energy sources, the demand for rechargeable lithium-ion batteries is surging. However, their cathodes typically contain cobalt -- a metal whose extraction has high environmental and societal costs. Now, researchers in report evaluating an earth-abundant, carbon-based cathode material that could replace cobalt and other scarce and toxic metals without sacrificing lithium-ion battery performance.

Chemistry: General Chemistry: Organic Chemistry Energy: Batteries Energy: Technology Environmental: General Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Cobalt-free batteries could power cars of the future      (via sciencedaily.com)     Original source 

A new battery material could offer a more sustainable way to power electric cars. The lithium-ion battery includes a cathode based on organic materials, instead of cobalt or nickel.

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

Origin of intense light in supermassive black holes and tidal disruption events revealed      (via sciencedaily.com)     Original source 

A new study is a significant breakthrough in understanding Tidal Disruption Events (TDEs) involving supermassive black holes. The new simulations accurately replicate the entire sequence of a TDE from stellar disruption to the peak luminosity of the resulting flare.

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

Astronomers detect oldest black hole ever observed      (via sciencedaily.com)     Original source 

Researchers have discovered the oldest black hole ever observed, dating from the dawn of the universe, and found that it is 'eating' its host galaxy to death.

Engineering: Nanotechnology Offbeat: General Offbeat: Space Physics: Optics Space: Astronomy Space: Exploration Space: General Space: Structures and Features
Published

The metalens meets the stars      (via sciencedaily.com)     Original source 

Researchers have developed a 10-centimeter-diameter glass metalens that can image the sun, the moon and distant nebulae with high resolution. It is the first all-glass, large-scale metalens in the visible wavelength that can be mass produced using conventional CMOS fabrication technology.

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

Study delivers detailed photos of galaxies' inner structures      (via sciencedaily.com)     Original source 

High-resolution images captured by the James Webb Space Telescope are offering powerful insights into the complex dust patterns of nearby star-forming galaxies.

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

Astronomers produce most sensitive radio image ever of ancient star cluster      (via sciencedaily.com)     Original source 

Astronomers have created the most sensitive radio image ever of a globular cluster, an ancient ball of tightly-packed stars.

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

Earth-sized planet discovered in 'our solar backyard'      (via sciencedaily.com)     Original source 

Astronomers have discovered a planet closer and younger than any other Earth-sized world yet identified. It's a remarkably hot world whose proximity to our own planet and to a star like our sun mark it as a unique opportunity to study how planets evolve.

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

NASA scientists discover a novel galactic 'fossil'      (via sciencedaily.com)     Original source 

Researchers at NASA's Goddard Space Flight Center have discovered X-ray activity that sheds light on the evolution of galaxies.

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

Close encounters of the supermassive black hole kind      (via sciencedaily.com)     Original source 

Astrophysicists have confirmed the accuracy of an analytical model that can unlock key information about supermassive black holes and the stars they engulf.

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

Our surprising magnetic galaxy      (via sciencedaily.com)     Original source 

A team of astronomers has created the first-ever map of magnetic field structures within a spiral arm of our Milky Way galaxy. Previous studies on galactic magnetic fields only gave a very general picture, but the new study reveals that magnetic fields in the spiral arms of our galaxy break away from this general picture significantly and are tilted away from the galactic average by a high degree. The findings suggest magnetic fields strongly impact star-forming regions which means they played a part in the creation of our own solar system.

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

Surprise gamma-ray feature beyond our galaxy      (via sciencedaily.com)     Original source 

Astronomers analyzing 13 years of data from NASA's Fermi Gamma-ray Space Telescope have found an unexpected and as yet unexplained feature outside of our galaxy.