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Categories: Energy: Alternative Fuels, Space: Astrophysics

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

Early universe crackled with bursts of star formation, Webb shows      (via sciencedaily.com)     Original source 

Among the most fundamental questions in astronomy is: How did the first stars and galaxies form? NASA's James Webb Space Telescope is already providing new insights into this question. One of the largest programs in Webb's first year of science is the JWST Advanced Deep Extragalactic Survey, or JADES, which will devote about 32 days of telescope time to uncover and characterize faint, distant galaxies. While the data is still coming in, JADES already has discovered hundreds of galaxies that existed when the universe was less than 600 million years old. The team also has identified galaxies sparkling with a multitude of young, hot stars.

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

Weigh a quasar's galaxy with precision      (via sciencedaily.com)     Original source 

Scientists have managed to weigh -- more precisely than any other technique -- a galaxy hosting a quasar, thanks to the fact that it acts as a gravitational lens. Detection of strong gravitational lensing quasars is expected to multiply with the launch of Euclid this summer.

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

Eventually everything will evaporate, not only black holes      (via sciencedaily.com)     Original source 

New theoretical research has shown that Stephen Hawking was likely right about black holes, although not completely. Due to Hawking radiation, black holes will eventually evaporate, but the event horizon is not as crucial as had been believed. Gravity and the curvature of spacetime cause this radiation too. This means that all large objects in the universe, like the remnants of stars, will eventually evaporate.

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

Mysterious dashes revealed in Milky Way's center      (via sciencedaily.com)     Original source 

In the early 1980s, astronomers discovered gigantic, one-dimensional filaments dangling vertically near Sagittarius A*, our galaxy's central supermassive black hole. Now, astronomers have discovered a new population of filaments -- but these threads are much shorter and lie horizontally or radially, spreading out like spokes on a wheel from the black hole.

Chemistry: Biochemistry Energy: Alternative Fuels Environmental: General Geoscience: Environmental Issues
Published

Record 19.31% efficiency with organic solar cells      (via sciencedaily.com)     Original source 

Researchers have achieved a breakthrough power-conversion efficiency (PCE) of 19.31% with organic solar cells (OSCs), also known as polymer solar cells. This remarkable binary OSC efficiency will help enhance applications of these advanced solar energy devices.

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

Astrophysicists confirm the faintest galaxy ever seen in the early universe      (via sciencedaily.com)     Original source 

After the Big Bang, the universe expanded and cooled sufficiently for hydrogen atoms to form. In the absence of light from the first stars and galaxies, the universe entered a period known as the cosmic dark ages. The first stars and galaxies appeared several hundred million years later and began burning away the hydrogen fog left over from the Big Bang, rendering the universe transparent, like it is today. Researchers have now confirmed the existence of a distant, faint galaxy typical of those whose light burned through the hydrogen atoms; the finding should help them understand how the cosmic dark ages ended.

Chemistry: Inorganic Chemistry Energy: Nuclear Environmental: General Physics: General Physics: Optics Space: Astrophysics Space: General Space: Structures and Features
Published

Under pressure: Foundations of stellar physics and nuclear fusion investigated      (via sciencedaily.com)     Original source 

Research using the world's most energetic laser has shed light on the properties of highly compressed matter -- essential to understanding the structure of giant planets and stars, and to develop controlled nuclear fusion, a process that could harvest carbon-free energy.

Offbeat: General Offbeat: Space Space: Astrophysics Space: Exploration Space: General
Published

Quest for alien signals in the heart of the Milky Way takes off      (via sciencedaily.com)     Original source 

A graduate student is spearheading an extraordinary scientific endeavor -- a groundbreaking mission to uncover periodic signals emanating from the core of the Milky Way called the Breakthrough Listen Investigation for Periodic Spectral Signals (BLIPSS). Such repetitive patterns could be the key to unlocking the mysteries of extraterrestrial intelligence in our galaxy.

Energy: Alternative Fuels Energy: Technology Environmental: General Environmental: Water
Published

New catalyst lowers cost for producing environmentally sustainable hydrogen from water      (via sciencedaily.com)     Original source 

A team has developed a new catalyst composed of elements abundant in the Earth. It could make possible the low-cost and energy-efficient production of hydrogen for use in transportation and industrial applications.

Chemistry: Thermodynamics Energy: Alternative Fuels Energy: Technology Environmental: General Environmental: Water Geoscience: Environmental Issues
Published

The next generation of solar energy collectors could be rocks      (via sciencedaily.com)     Original source 

The next generation of sustainable energy technology might be built from some low-tech materials: rocks and the sun. Using a new approach known as concentrated solar power, heat from the sun is stored then used to dry foods or create electricity. A team has found that certain soapstone and granite samples from Tanzania are well suited for storing this solar heat, featuring high energy densities and stability even at high temperatures.

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

One-third of galaxy's most common planets could be in habitable zone      (via sciencedaily.com)     Original source 

A third of the exoplanets orbiting common M dwarf stars have gentle enough orbits to potentially be in the habitable zone capable of hosting liquid water.

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

X-ray emissions from black hole jets vary unexpectedly, challenging leading model of particle acceleration      (via sciencedaily.com)     Original source 

Black hole jets are known to emit x-rays, but how they accelerate particles to this high-energy state is still a mystery. Surprising new findings appear to rule out a leading theory, opening the door to reimagining how particle acceleration works. One model of how jets generate x-rays expects the jets' x-ray emissions to remain stable over long time scales. However, the new paper found that the x-ray emissions of a statistically significant number of jets varied over just a few years.

Chemistry: Biochemistry Energy: Alternative Fuels Energy: Fossil Fuels Energy: Technology Environmental: General
Published

Hydrogen battery: Storing hydrogen in coal may help power clean energy economy      (via sciencedaily.com)     Original source 

The quest to develop hydrogen as a clean energy source that could curb our dependence on fossil fuels may lead to an unexpected place -- coal. Scientists have found that coal may represent a potential way to store hydrogen gas, much like batteries store energy for future use, addressing a major hurdle in developing a clean energy supply chain.

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

The search for habitable planets expands      (via sciencedaily.com)     Original source 

Astronomers are suggesting a new way to expand the search for habitable planets that takes into account a zone not previously considered: the space between the star and what's called soot-line in planet-forming disks.

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

Astronomers discover a key planetary system to understand the formation mechanism of the mysterious 'super-Earths'      (via sciencedaily.com)     Original source 

A study presents the detection of a system of two planets slightly larger than Earth orbiting a cold star in a synchronized dance. Named TOI-2096, the system is located 150 light-years from Earth. This system, located 150 light-years from Earth, is one of the best candidates for a detailed study of their atmosphere with the JWST space telescope.

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

Helium nuclei research advances our understanding of cosmic ray origin and propagation      (via sciencedaily.com)     Original source 

The latest observations from Low Earth Orbit with the International Space Station provide further evidence of spectral hardening and softening of cosmic ray particles.

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

NASA's Hubble hunts for intermediate-sized black hole close to home      (via sciencedaily.com)     Original source 

Astronomers have come up with what they say is some of their best evidence yet for the presence of a rare class of 'intermediate-sized' black hole that may be lurking in the heart of the closest globular star cluster to Earth, located 6,000 light-years away.

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

Element creation in the lab deepens understanding of surface explosions on neutron stars      (via sciencedaily.com)     Original source 

Scientists working in the lab have produced a signature nuclear reaction that occurs on the surface of a neutron star gobbling mass from a companion star. Their achievement improves understanding of stellar processes generating diverse nuclear isotopes.

Energy: Alternative Fuels Energy: Technology Environmental: General Environmental: Water Geoscience: Environmental Issues
Published

New supply chain model to empower seabound hydrogen economy      (via sciencedaily.com)     Original source 

A team of researchers has created a new supply chain model which could empower the international hydrogen renewable energy industry.

Energy: Alternative Fuels Energy: Fossil Fuels Energy: Nuclear Energy: Technology Physics: General
Published

Demystifying vortex rings in nuclear fusion, supernovae      (via sciencedaily.com)     Original source 

Better understanding the formation of swirling, ring-shaped disturbances -- known as vortex rings -- could help nuclear fusion researchers compress fuel more efficiently, bringing it closer to becoming a viable energy source. A mathematical model linking these vortices with more pedestrian types, like smoke rings, could help engineers control their behavior in power generation and more.