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Categories: Chemistry: Organic Chemistry, Space: Exploration

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Chemistry: Biochemistry Chemistry: General Chemistry: Organic Chemistry
Published

AI programs spat out known data and hardly learned specific chemical interactions when predicting drug potency      (via sciencedaily.com)     Original source 

Artificial intelligence (AI) is on the rise. Until now, AI applications generally have 'black box' character: How AI arrives at its results remains hidden. A cheminformatics scientist has now developed a method that reveals how certain AI applications work in pharmaceutical research. The results are unexpected: the AI programs largely remembered known data and hardly learned specific chemical interactions when predicting drug potency.

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

Chemistry: Organic Chemistry Mathematics: Modeling Offbeat: Computers and Math Offbeat: General
Published

How to use AI for discovery -- without leading science astray      (via sciencedaily.com)     Original source 

In the same way that chatbots sometimes 'hallucinate,' or make things up, machine learning models designed for scientific applications can sometimes present misleading or downright false results. Researchers now present a new statistical technique for safely using AI predictions to test scientific hypotheses.

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

Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Physics: Optics
Published

Chemists image basic blocks of synthetic polymers      (via sciencedaily.com)     Original source 

Researchers have developed a new method to image polymerization catalysis reactions one monomer at a time. 

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

Space: Exploration Space: General Space: Structures and Features Space: The Solar System
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Extended habitability of exoplanets due to subglacial water      (via sciencedaily.com)     Original source 

New research promises to redefine our comprehension of habitable exoplanets. A recent study introduces the concept of subglacial liquid water as a pivotal element in broadening the boundaries of the conventional Habitable Zone.

Space: Exploration Space: General Space: The Solar System
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Exploring the origin of nucleosynthetic isotope variations in Ryugu samples      (via sciencedaily.com)     Original source 

The observed variations in chromium (Cr) isotope ratios in the Ryugu asteroid samples collected by Hayabusa2 likely resulted from elemental redistribution of slightly soluble Cr by water within the parent body, reveals a multinational study. The results provide useful insights for expanding our understanding of the origin and evolution of materials in our solar system.

Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: Structures and Features Space: The Solar System
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Scientists find 14 new transient objects in space by peering through the 'Christmas Tree Galaxy Cluster'      (via sciencedaily.com)     Original source 

Scientists have discovered 14 new transient objects during their time-lapse study of galaxy cluster MACS0416 -- located about 4.3 billion light years from Earth -- which they've dubbed as the 'Christmas Tree Galaxy Cluster.'

Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Environmental: General Geoscience: Geochemistry
Published

Liquid metals shake up century-old chemical engineering processes      (via sciencedaily.com)     Original source 

Liquid metals could be the long-awaited solution to 'greening' the chemical industry, according to researchers who tested a new technique they hope can replace energy-intensive chemical engineering processes harking back to the early 20th century.

Space: Astronomy Space: Exploration Space: General Space: The Solar System
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New findings support long-proposed process of planet formation      (via sciencedaily.com)     Original source 

Scientists just made a breakthrough discovery in revealing how planets are made. By observing water vapor in protoplanetary disks, they confirmed a physical process involving the drifting of ice-coated solids from the outer regions of the disk into the rocky-planet zone.

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. 

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.

Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry
Published

Charged 'molecular beasts' the basis for new compounds      (via sciencedaily.com)     Original source 

Mass spectrometers are high-tech machines that play an important role in our society. They are highly sensitive analytical instruments that are indispensable in areas such as medical diagnostics, food quality control and the detection of hazardous chemical substances. A research group is working to modify mass spectrometers so that they can be used for a completely different purpose: the chemical synthesis of new molecules.

Chemistry: General Chemistry: Organic Chemistry Energy: Technology Environmental: Ecosystems Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry
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Self-powered microbial fuel cell biosensor for monitoring organic freshwater pollution      (via sciencedaily.com)     Original source 

Biodegradable waste from plant and animal sources released into freshwater ecosystems is a significant environmental concern. Nonetheless, current methods for assessing water quality seem more or less impractical due to their complexity and high costs. In a promising development, a team of researchers has successfully constructed a self-sustaining and buoyant biosensor using inexpensive carbon-based materials for monitoring water quality at the inlets of freshwater lakes and rivers.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: Structures and Features Space: The Solar System
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Exploding stars      (via sciencedaily.com)     Original source 

When massive stars or other stellar objects explode in the Earth's cosmic neighborhood, ejected debris can also reach our solar system. Traces of such events are found on Earth or the Moon and can be detected using accelerator mass spectrometry, or AMS for short.

Paleontology: General Space: Astronomy Space: Exploration Space: General Space: The Solar System
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'Jurassic worlds' might be easier to spot than modern Earth      (via sciencedaily.com)     Original source 

An analysis finds telescopes could better detect potential chemical signatures of life in an Earth-like exoplanet that more closely resembles the age the dinosaurs inhabited than the one we know today.