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Categories: Energy: Fossil Fuels, Space: Exploration

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Synthetic fuels produced from renewable sources, so-called refuels, are deemed potential game changers in fighting climate change. Refuels promise to reduce CO2 emissions by up to 90% compared to conventional fuels and they allow for the continued use of existing vehicle fleets with combustion engines and of the refueling infrastructure, from fuel production to transport to sales. Researchers carried out extensive fleet tests in a large-scale project with industry partners and proved that refuels can be used in all vehicles and produced in large quantities in the foreseeable future.

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Using a new power sector model, a team of researchers has proposed a method for Europe to eliminate natural gas imports from Russia.

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A new study identifies the political factors that allow some countries to lead in adopting cleaner sources of energy while others lag behind. By analyzing how different countries responded to the current energy crisis and to the oil crisis of the 1970s, the study reveals how the structure of political institutions can help or hinder the shift to clean energy. The findings offer important lessons as governments race to limit the impacts of climate change.

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Planetary scientists identified a potential source of a special kind of meteorite. Its characteristics could explain certain discrepancies in how near-Earth asteroids are classified.

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Most theories claim the Moon formed out of the debris of a collision between the Earth and an object about the size of Mars, called Theia, coalescing in orbit over months or years. A new simulation puts forth a different theory -- the Moon may have formed immediately, in a matter of hours, when material from the Earth and Theia was launched directly into orbit after the impact.

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Discovered in 1912, cosmic rays have been studied extensively and our current understanding of them is compiled into what is called the Standard Model. Recently, this understanding has been challenged by the detection of unexpected spectral structures in the cosmic ray proton energy spectrum. Now, scientists take this further with high-statistics and low-uncertainty measurement of these protons over a broader energy range using the CALorimetric Electron Telescope, confirming the presence of such structures.

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Polyethylene plastics -- single-use bags and general-purpose bottles -- are indestructable forever plastics. That also makes them hard to recycle. Chemists have found a way to break down the polymer -- a chain of about a thousand ethylene molecules -- into three-carbon molecules, propylene, which are in high demand for making another plastic, polypropylene. The process could turn waste plastic into high-value feedstocks and reduce the need for fossil fuels to make propylene.

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A research team has found asteroid impacts on the Moon millions of years ago coincided precisely with some of the largest meteorite impacts on Earth, such as the one that wiped out the dinosaurs.

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Turning plastic waste into useful products through chemical recycling is one strategy for addressing Earth's growing plastic pollution problem. A new study may improve the ability of one method, called pyrolysis, to process hard-to-recycle mixed plastics -- like multilayer food packaging -- and generate fuel as a byproduct, the scientists said.

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An international team of researchers has revealed new evidence for the possible existence of liquid water beneath the south polar ice cap of Mars.

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An underutilized natural resource could be just what the airline industry needs to curb carbon emissions. Researchers report success in using lignin as a path toward a drop-in 100% sustainable aviation fuel. Lignin makes up the rigid parts of the cell walls of plants. Other parts of plants are used for biofuels, but lignin has been largely overlooked because of the difficulties in breaking it down chemically and converting it into useful products.

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After 10 months flying in space, NASA's Double Asteroid Redirection Test (DART) -- the world's first planetary defense technology demonstration -- successfully impacted its asteroid target on Monday, the agency's first attempt to move an asteroid in space.

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Astronomers believe bright reflections beneath the surface of Mars' South Pole are not necessarily evidence of liquid water, but instead geological layers.

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In December 2020, a small landing capsule brought rock particles from the asteroid Ryugu to Earth -- material from the beginnings of our solar system. The Japanese space probe Hayabusa 2 had collected the samples. Geoscientists have now discovered areas with a massive accumulation of rare earths and unexpected structures.

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NASA's James Webb Space Telescope shows off its capabilities closer to home with its first image of Neptune. Not only has Webb captured the clearest view of this distant planet's rings in more than 30 years, but its cameras reveal the ice giant in a whole new light.

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Electricity-generating rooftop solar cells not only save on planet-warming carbon emissions, they also save a significant amount of water. Water consumption is tightly bound to energy use, because without water we cannot mine, drill, frack, or cool thermoelectric and nuclear plants. A given household may save on average 16,200 gallons of water per year by installing rooftop solar.

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An international team of researchers with NASA's InSight mission located four new craters created by impacts on the surface of Mars. Using data from a seismometer and visuals acquired from the Mars Reconnaissance Orbiter, the team successfully calculated and confirmed the impact locations. Researchers have now captured the dynamics of an impact on Mars.

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The search for extraterrestrial life just got more interesting as a team of scientists has discovered new evidence for a key building block for life in the subsurface ocean of Saturn's moon Enceladus. New modeling indicates that Enceladus's ocean should be relatively rich in dissolved phosphorus, an essential ingredient for life.

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It's been known for decades that astronauts' immune systems become suppressed in space, leaving them vulnerable to disease, but the exact mechanisms of immune dysfunction have remained a mystery -- now a Cornell undergraduate has found a potential solution.

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Though Mars is a frozen desert today, scientists have shown that Mars contains evidence of ancient lakes that existed billions of years ago, which could contain evidence for ancient life and climate conditions on the red planet. Through a meta-analysis of years of satellite data that shows evidence for lakes on Mars, a geologist has proposed that scientists might have dramatically underestimated the number of ancient Martian lakes that once existed.