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Categories: Chemistry: General, Space: General

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

Geologists expect Chang'e-6 lunar surface samples to contain volcanic rock and impact ejecta      (via sciencedaily.com)     Original source 

On June 25, China's Chang'e-6 (CE-6) lunar probe is set to return to Earth, carrying the first surface samples collected from the farside of the Moon. In anticipation of this historic event, scientists are publishing their predictions for the unique materials that may be found in the CE-6 samples.

Chemistry: General Chemistry: Inorganic Chemistry Physics: General Physics: Optics
Published

Novel application of optical tweezers: Colorfully showing molecular energy transfer      (via sciencedaily.com)     Original source 

Using a novel non-contact approach, a research team has successfully controlled the speed and efficiency of Forster resonance energy transfer between fluorescent molecules by varying the intensity of a laser beam.

Chemistry: General Environmental: Water Geoscience: Geochemistry
Published

New study confirms forever chemicals are absorbed through human skin      (via sciencedaily.com)     Original source 

A study of 17 commonly used synthetic 'forever chemicals' has shown that these toxic substances can readily be absorbed through human skin.

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

A hidden treasure in the Milky Way -- Astronomers uncover ultrabright x-ray source      (via sciencedaily.com)     Original source 

Astronomers uncovered that a well-known X-ray binary, whose exact nature has been a mystery to scientists until now, is actually a hidden ultraluminous X-ray source.

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

Star clusters observed within a galaxy in the early Universe      (via sciencedaily.com)     Original source 

The history of how stars and galaxies came to be and evolved into the present day remains among the most challenging astrophysical questions to solve yet, but new research brings us closer to understanding it. New insights about young galaxies during the Epoch of Reionization have been revealed. Observations with the James Webb Space Telescope (JWST) of the galaxy Cosmic Gems arc (SPT0615-JD) have confirmed that the light of the galaxy was emitted 460 million years after the big bang. What makes this galaxy unique is that it is magnified through an effect called gravitational lensing, which has not been observed in other galaxies formed during that age.

Chemistry: General Chemistry: Inorganic Chemistry
Published

Novel catalysts for improved methanol production using carbon dioxide dehydrogenation      (via sciencedaily.com)     Original source 

Encapsulating copper nanoparticles within hydrophobic porous silicate crystals has been shown to significantly enhance the catalytic activity of copper-zinc oxide catalysts used in methanol synthesis via CO2 hydrogenation. The innovative encapsulation structure effectively inhibits the thermal aggregation of copper particles, leading to enhanced hydrogenation activity and increased methanol production. This breakthrough paves the way for more efficient methanol synthesis from CO2.

Chemistry: Biochemistry Chemistry: General Chemistry: Organic Chemistry
Published

Membrane protein analogues could accelerate drug discovery      (via sciencedaily.com)     Original source 

Researchers have created a deep learning pipeline for designing soluble analogues of key protein structures used in pharmaceutical development, sidestepping the prohibitive cost of extracting these proteins from cell membranes.

Space: Astronomy Space: Exploration Space: General
Published

Guiding humanity beyond the moon      (via sciencedaily.com)     Original source 

What actually happens to the human body in space? While scientists and researchers have heavily researched how various factors impact the human body here on Earth, the amount of information available about changes that occur in the body in space is not as well-known. Scientists have been studying for years how the body, specifically on the molecular side, changes in space. Recently, findings depict how the modern tools of molecular biology and precision medicine can help guide humanity into more challenging missions beyond where we've already been.

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

Iron meteorites hint that our infant solar system was more doughnut than dartboard      (via sciencedaily.com)     Original source 

Iron meteorites are remnants of the metallic cores of the earliest asteroids in our solar system. Iron meteorites contain refractory metals, such as iridium and platinum, that formed near the sun but were transported to the outer solar system. New research shows that for this to have happened, the protoplanetary disk of our solar system had to have been doughnut-shaped because the refractory metals could not have crossed the large gaps in a target-shaped disk of concentric rings. The paper suggests that the refractory metals moved outward as the protoplanetary disk rapidly expanded, and were trapped in the outer solar system by Jupiter.

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

Supermassive black hole appears to grow like a baby star      (via sciencedaily.com)     Original source 

Supermassive black holes pose unanswered questions for astronomers around the world, not least 'How do they grow so big?' Now, an international team of astronomers has discovered a powerful rotating, magnetic wind that they believe is helping a galaxy's central supermassive black hole to grow. The swirling wind, revealed with the help of the ALMA telescope in nearby galaxy ESO320-G030, suggests that similar processes are involved both in black hole growth and the birth of stars.

Chemistry: Biochemistry Chemistry: General
Published

Scientists devise algorithm to engineer improved enzymes      (via sciencedaily.com)     Original source 

Scientists have prototyped a new method for 'rationally engineering' enzymes to deliver improved performance. They have devised an algorithm, which takes into account an enzyme's evolutionary history, to flag where mutations could be introduced with a high likelihood of delivering functional improvements. Their work could have significant, wide-ranging impacts across a suite of industries, from food production to human health.

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

Titan's lakes may be shaped by waves      (via sciencedaily.com)     Original source 

Geologists studied Titan's shorelines and showed through simulations that coastlines of the moon's methane- and ethane-filled seas have likely been shaped by waves. Until now, scientists have found indirect and conflicting signs of wave activity, based on Cassini images of Titan's surface.

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

Jupiter's great red spot is not the same one Cassini observed in 1600s      (via sciencedaily.com)     Original source 

Jupiter's iconic Great Red Spot has persisted for at least 190 years and is likely a different spot from the one observed by the astronomer Giovanni Domenico Cassini in 1665, a new study reports. The Great Red Spot we see today likely formed because of an instability in the planet's intense atmospheric winds, producing a long, persistent atmospheric cell, the study also finds.

Space: General
Published

Shining light on mental health in space science community      (via sciencedaily.com)     Original source 

The severity of anxiety and depressive symptoms in the planetary science community is greater than in the general U.S. population, according to a new study.

Space: Exploration Space: General
Published

Impacts of space travel on astronauts' eye health      (via sciencedaily.com)     Original source 

Gravitational changes experienced by astronauts during space travel can cause fluids within the body to shift. This can cause changes to the cardiovascular system, including vessels in and around the eyes. These fluid shifts may be related to a phenomenon known as Spaceflight Associated Neuro-ocular Syndrome (SANS), which can cause astronauts to experience changes in eye shape and other ocular symptoms.

Chemistry: Biochemistry Chemistry: General Environmental: Water Geoscience: Geochemistry Geoscience: Oceanography
Published

Much of the Nord Stream gas remained in the sea      (via sciencedaily.com)     Original source 

Much of the methane released into the southern Baltic Sea from the Nord Stream gas pipeline has remained in the water. This is shown by measurements taken by researchers from the University of Gothenburg.

Chemistry: Biochemistry Chemistry: General Chemistry: Organic Chemistry
Published

Mirror-image chemicals may revolutionize drug delivery      (via sciencedaily.com)     Original source 

More than 130 years after cyclodextrins were first discovered and reported, a team of scientists has created chemical mirror images of these complex carbohydrates in the laboratory. This discovery may revolutionize how medications are delivered to patients.

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

What happens when neutron stars collide?      (via sciencedaily.com)     Original source 

New simulations show that hot neutrinos created at the interface of merging binary neutron stars are briefy trapped and remain out of equilibrium with the cold cores of the stars for 2 to 3 milliseconds.

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

Astronomers see a massive black hole awaken in real time      (via sciencedaily.com)     Original source 

In late 2019 the previously unremarkable galaxy SDSS1335+0728 suddenly started shining brighter than ever before. To understand why, astronomers have used data from several space and ground-based observatories, including the European Southern Observatory's Very Large Telescope (ESO's VLT), to track how the galaxy's brightness has varied. In a study out today, they conclude that they are witnessing changes never seen before in a galaxy -- likely the result of the sudden awakening of the massive black hole at its core.