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Categories: Energy: Alternative Fuels, Offbeat: Space

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Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Energy: Alternative Fuels Energy: Technology Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Water splitting reaction for green hydrogen gas production improved      (via sciencedaily.com)     Original source 

Electrochemical catalysts used in water splitting often show poor performance due to low electrical conductance of (oxy)hydroxide species produced in situ. To overcome this challenge, researchers have now designed an electrode with Schottky Junction formed at the interface of metallic Ni-W5N4 and semiconducting NiFeOOH. The proposed electrode shows excellent catalytic activity and can facilitate industrial seawater splitting continuously for 10 days.

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

With unprecedented flares, stellar corpse shows signs of life      (via sciencedaily.com)     Original source 

After a distant star's explosive death, an active stellar corpse was the likely source of repeated energetic flares observed over several months -- a phenomenon astronomers had never seen before, astronomers report.

Offbeat: General Offbeat: Space Space: Astronomy Space: Exploration Space: General Space: Structures and Features Space: The Solar System
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James Webb Space Telescope detects water vapor, sulfur dioxide and sand clouds in the atmosphere of a nearby exoplanet      (via sciencedaily.com)     Original source 

Astronomers have used recent observations made with the James Webb Space Telescope to study the atmosphere of the nearby exoplanet WASP-107b. Peering deep into the fluffy atmosphere of WASP-107b they discovered not only water vapor and sulfur dioxide, but even silicate sand clouds. These particles reside within a dynamic atmosphere that exhibits vigorous transport of material.

Geoscience: Earth Science Geoscience: Geochemistry Offbeat: Earth and Climate Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: General Space: Structures and Features Space: The Solar System
Published

'Bouncing' comets could deliver building blocks for life to exoplanets      (via sciencedaily.com)     Original source 

How did the molecular building blocks for life end up on Earth? One long-standing theory is that they could have been delivered by comets. Now, researchers have shown how comets could deposit similar building blocks to other planets in the galaxy.

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

Using eclipses to calculate the transparency of Saturn's rings      (via sciencedaily.com)     Original source 

A student has measured the optical depth of Saturn's rings using a new method based on how much sunlight reached the Cassini spacecraft while it was in the shadow of the rings.

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

Galactic 'lightsabers': Answering longstanding questions about jets from black holes      (via sciencedaily.com)     Original source 

The one thing everyone knows about black holes is that absolutely everything nearby gets sucked into them. Almost everything, it turns out. Astrophysicists have now determined conclusively that energy close to the event horizon of black hole M87* is pushing outward, not inward. The researchers have also created a way to test the prediction that black holes lose rotational energy and to establish it's that energy that produces the incredibly powerful jets.

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

Scientists uncover aurora-like radio emission above a sunspot      (via sciencedaily.com)     Original source 

Astronomers have detailed radio observations of an extraordinary aurora-like display -- occurring 40,000 km above a relatively dark and cold patch on the Sun, known as a sunspot.

Chemistry: Biochemistry Chemistry: General Energy: Alternative Fuels Energy: Fossil Fuels Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry
Published

Ammonia fuel offers great benefits but demands careful action      (via sciencedaily.com)     Original source 

Researchers have identified the potential environmental risks of using ammonia as a zero-carbon fuel in order to develop an engineering roadmap to a sustainable ammonia economy.

Offbeat: General Offbeat: Space Physics: General Physics: Optics Physics: Quantum Physics Space: Exploration Space: General Space: Structures and Features
Published

Tracking down quantum flickering of the vacuum      (via sciencedaily.com)     Original source 

Absolutely empty -- that is how most of us envision the vacuum. Yet, in reality, it is filled with an energetic flickering: the quantum fluctuations. Experts are currently preparing a laser experiment intended to verify these vacuum fluctuations in a novel way, which could potentially provide clues to new laws in physics. A research team has developed a series of proposals designed to help conduct the experiment more effectively -- thus increasing the chances of success.

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

Second-most distant galaxy discovered using James Webb Space Telescope      (via sciencedaily.com)     Original source 

The second- and fourth-most distant galaxies ever observed have been discovered in a region of space known as Pandora's Cluster, or Abell 2744, using data from NASA's James Webb Space Telescope.

Chemistry: General Chemistry: Organic Chemistry Energy: Alternative Fuels Energy: Fossil Fuels Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry Physics: Optics
Published

Solar-powered device produces clean water and clean fuel at the same time      (via sciencedaily.com)     Original source 

A floating, solar-powered device that can turn contaminated water or seawater into clean hydrogen fuel and purified water, anywhere in the world, has been developed by researchers.

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

Milky Way-like galaxy found in the early universe      (via sciencedaily.com)     Original source 

Astronomers have discovered the most distant barred spiral galaxy, similar to the Milky Way, that has been observed to date.

Energy: Alternative Fuels Energy: Technology Environmental: General Geoscience: Environmental Issues Physics: Optics
Published

'Indoor solar' to power the Internet of Things      (via sciencedaily.com)     Original source 

From Wi-Fi-connected home security systems to smart toilets, the so-called Internet of Things brings personalization and convenience to devices that help run homes. But with that comes tangled electrical cords or batteries that need to be replaced. Now, researchers have brought solar panel technology indoors to power smart devices. They show which photovoltaic (PV) systems work best under cool white LEDs, a common type of indoor lighting.

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

Glow in the visible range detected for the first time in the Martian night      (via sciencedaily.com)     Original source 

Scientists have observed, for the first time in the visible range, a glow on the night side of the planet Mars. These new observations provide a better understanding of the dynamics of the upper atmosphere of the Red Planet and its variations throughout the year.

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

Studies of geologic faulting on icy moons aid exploration of extraterrestrial watery worlds      (via sciencedaily.com)     Original source 

Earth and space scientists document and reveal the mechanisms behind strike-slip faulting on the largest moon of Saturn, Titan, and Jupiter's largest moon, Ganymede. 

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

Mystery resolved: Black hole feeding and feedback at the center of an active galaxy      (via sciencedaily.com)     Original source 

Almost every large galaxy has a supermassive black hole at its center. An international research team has recently observed the Circinus galaxy, which is one of the closest galaxies to the Milky Way, with high enough resolution to gain further insights into the gas flows to and from the black hole at its galactic nucleus.

Chemistry: Biochemistry Chemistry: General Chemistry: Organic Chemistry Energy: Alternative Fuels Energy: Batteries
Published

Photo battery achieves competitive voltage      (via sciencedaily.com)     Original source 

Researchers have developed a monolithically integrated photo battery using organic materials. The photo battery achieves an unprecedented high discharge potential of 3.6 volts. The system is capable of powering miniature devices.

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

Black holes are messy eaters      (via sciencedaily.com)     Original source 

New observations down to light-year scale of the gas flows around a supermassive black hole have successfully detected dense gas inflows and shown that only a small portion (about 3 percent) of the gas flowing towards the black hole is eaten by the black hole. The remainder is ejected and recycled back into the host galaxy.

Energy: Alternative Fuels Energy: Technology Environmental: General
Published

Two million European households could abandon the electrical grid by 2050      (via sciencedaily.com)     Original source 

Researchers report that 53% of European freestanding homes could have supplied all their own energy needs in 2020 using only local rooftop solar radiation, and this technical feasibility could increase to 75% in 2050. The study shows that there is no economic advantage for individual households to be fully self-sufficient under current or future conditions, though in some cases the costs are on par with remaining on-grid. The researchers estimate that self-sufficiency will be economically feasible for 5% (two million) of Europe's 41 million freestanding single-family homes in 2050, if households are willing to pay up to 50% more than the cost of remaining fully grid dependent.