Showing 20 articles starting at article 721

< Previous 20 articles        Next 20 articles >

Categories: Energy: Fossil Fuels, Space: Exploration

Return to the site home page

Space: Exploration Space: Structures and Features
Published

NASA's retired Compton mission reveals superheavy neutron stars      (via sciencedaily.com) 

Astronomers studying archival observations of powerful explosions called short gamma-ray bursts (GRBs) have detected light patterns indicating the brief existence of a superheavy neutron star shortly before it collapsed into a black hole. This fleeting, massive object likely formed from the collision of two neutron stars.

Space: Exploration Space: Structures and Features
Published

Galactic shock is shaping Stephan's Quintet in mysterious ways      (via sciencedaily.com)     Original source 

Shockwaves resulting from the violent collision between an intruder galaxy and Stephan's Quintet are helping astronomers to understand how turbulence influences gas in the intergalactic medium. New observations have revealed that a sonic boom several times the size of the Milky Way has kick-started a recycling plant for warm and cold molecular hydrogen gas. What's more, scientists uncovered the break-up of a giant cloud into a fog of warm gas, the possible collision of two clouds forming a splash of warm gas around them, and the formation of a new galaxy.

Space: Cosmology Space: Exploration Space: Structures and Features
Published

Searching for the earliest galaxies in the universe      (via sciencedaily.com) 

Astronomers have used data from NASA's James Webb Space Telescope (JWST) Early Release Observations and discovered 87 galaxies that could be the earliest known galaxies in the universe. The finding moves the astronomers one step closer to finding out when galaxies first appeared in the universe -- about 200-400 million years after the Big Bang.

Space: Cosmology Space: Exploration Space: Structures and Features
Published

NASA's Webb Telescope reveals links between galaxies near and far      (via sciencedaily.com) 

A new analysis of distant galaxies imaged by NASA's James Webb Space Telescope shows that they are extremely young and share some remarkable similarities to 'green peas,' a rare class of small galaxies in our cosmic backyard.

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

Physicists confirm effective wave growth theory in space      (via sciencedaily.com) 

Physicists have used spacecraft data to confirm an important theory of plasma physics that improves our understanding of space weather.

Chemistry: Thermodynamics Energy: Alternative Fuels Energy: Fossil Fuels
Published

Cheap, sustainable hydrogen through solar power      (via sciencedaily.com) 

A new kind of solar panel has achieved 9% efficiency in converting water into hydrogen and oxygen--mimicking a crucial step in natural photosynthesis. Outdoors, it represents a major leap in the technology, nearly 10 times more efficient than solar water-splitting experiments of its kind.

Energy: Alternative Fuels Energy: Fossil Fuels
Published

A step towards solar fuels out of thin air      (via sciencedaily.com) 

Chemical engineers have invented a solar-powered artificial leaf, built on a novel electrode which is transparent and porous, capable of harvesting water from the air for conversion into hydrogen fuel. The semiconductor-based technology is scalable and easy to prepare.

Energy: Alternative Fuels Space: Exploration
Published

Space solar power technology demo launched into orbit      (via sciencedaily.com) 

The launch represents the first in-situ test of the technology to harvest solar energy in space and transmit it to Earth.

Space: Exploration Space: The Solar System
Published

Experimentalists: Sorry, no oxygen required to make these minerals on Mars      (via sciencedaily.com) 

When NASA's Mars rovers found manganese oxides in rocks in the Gale and Endeavor craters on Mars in 2014, the discovery sparked some scientists to suggest that the red planet might have once had more oxygen in its atmosphere billions of years ago. But a new experimental study upends this view. Scientists discovered that under Mars-like conditions, manganese oxides can be readily formed without atmospheric oxygen.

Space: Exploration
Published

Loon stratospheric balloons confirm wind data from Aeolus      (via sciencedaily.com) 

ESA's novel Aeolus satellite reliably measures wind speed also in higher air layers and thus in a region of the atmosphere where other direct global wind measurements are relatively sparse. This is the result of a study for which data from the satellite were compared with wind observations from stratospheric balloons. Stratospheric balloons would provide highly accurate data on the horizontal wind speed and are therefore also suitable for the validation of future satellite missions.

Energy: Fossil Fuels
Published

Producing fertilizer without carbon emissions      (via sciencedaily.com) 

Researchers have shown how nitrogen fertilizer could be produced more sustainably. This is necessary not only to protect the climate, but also to reduce dependence on imported natural gas and to increase food security.

Space: Exploration Space: The Solar System
Published

Ancient asteroid grains provide insight into the evolution of our solar system      (via sciencedaily.com) 

The UK's national synchrotron facility, Diamond Light Source, was used by a large, international collaboration to study grains collected from a near-Earth asteroid to further our understanding of the evolution of our solar system. Researchers brought a fragment of the Ryugu asteroid to Diamond's Nanoprobe beamline I14 where a special technique called X-ray Absorption Near Edge Spectroscopy (XANES) was used to map out the chemical states of the elements within the asteroid material, to examine its composition in fine detail.

Space: Cosmology Space: Exploration Space: Structures and Features
Published

Webb Space Telescope reveals previously shrouded newborn stars      (via sciencedaily.com) 

Astronomers took a 'deep dive' into one of the first images from NASA's James Webb Space Telescope and were rewarded with a surprising discovery: telltale signs of two dozen previously unseen young stars about 7,500 light years from Earth.

Space: Exploration Space: The Solar System
Published

Marsquake!      (via sciencedaily.com) 

The quake lasted four hours and identified layering in the crust that could indicate a meteoroid impact. The 4.7 magnitude temblor happened in May 2022 and released five times more energy than any previously recorded quake on Mars. Mapping the seismic activity on Mars will help inform scientists where and how to build structures to ensure the safety of future human explorers.

Energy: Fossil Fuels
Published

Risk of population disruption as a result of decarbonization      (via sciencedaily.com) 

Researchers analyzed the effects of decarbonization strategies by linking global resource inventories with demographic systems to generate a matrix showing the risks and benefits. The research suggests that increased demand for energy transition metals (ETMs) could be more disruptive to some communities than winding back production of thermal coal. The team calculated that while a complete phase-out of coal could disrupt mine-town systems with a minimum of 33.5 million people, an additional 115.7 million would be at risk from disruption by ETMs.

Space: Exploration
Published

Watching water droplets merge on the International Space Station      (via sciencedaily.com) 

Researchers design and analyze droplet experiments that were done on the International Space Station. The researchers sent four different surfaces with various roughness properties to the station, where they were mounted to a lab table. Cameras recorded the droplets as they spread and merged. The experimental results confirmed and expanded the parameter space of the Davis-Hocking model, a simple way to simulate droplets.

Space: Exploration Space: The Solar System
Published

Sound recording made of dust devils (tiny tornadoes of dust, grit) on Mars      (via sciencedaily.com) 

When the rover Perseverance landed on Mars, it was equipped with the first working microphone on the planet's surface. Scientists have used it to make the first-ever audio recording of an extraterrestrial whirlwind.

Space: Exploration Space: The Solar System
Published

First ultraviolet imaging of Sun's middle corona      (via sciencedaily.com) 

Researchers have discovered web-like plasma structures in the Sun's middle corona. The researchers describe their innovative new observation method, imaging the middled corona in ultraviolet (UV) wavelength. The findings could lead to a better understanding of the solar wind's origins and its interactions with the rest of the solar system.

Space: Exploration Space: Structures and Features
Published

Antihelium nuclei as messengers from the depths of the galaxy      (via sciencedaily.com) 

How are galaxies born, and what holds them together? Astronomers assume that dark matter plays an essential role. However, as yet it has not been possible to prove directly that dark matter exists. A research team has now measured the survival rate of antihelium nuclei from the depths of the galaxy -- a necessary prerequisite for the indirect search for Dark Matter.

Space: Exploration Space: The Solar System
Published

Deep-space optical communication demonstration project forges ahead      (via sciencedaily.com) 

Scientists have demonstrated new laser systems for deep-space optical communication.