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Dark matter map reveals hidden bridges between galaxies
A new map of dark matter in the local universe reveals several previously undiscovered filamentary structures connecting galaxies. The map, developed using machine learning, could enable studies about the nature of dark matter as well as about the history and future of our local universe. Dark matter is an elusive substance that makes up 80%…
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Fecal implants drive behavioral and cognitive changes in Alzheimers model
New research in mice for the first time draws a definitive causal connection between changes in the gut microbiome to behavioral and cognitive changes in an animal model of Alzheimer’s disease. The study, published today in the journal Frontiers in Behavioral Neuroscience, suggests new avenues involving the use of probiotics to treat and potentially forestall…
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No evidence of an influence of dark matter on the force between nuclei
Although most of the universe is made up of dark matter, very little is known about it. Physicists have used a high-precision experiment to look for interaction between dark matter and normal matter. The universe mainly consists of a novel substance and an energy form that are not yet understood. This ‘dark matter’ and ‘dark…
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New study shows the potential of DNA-based data-structures systems
Engineers have created new dynamic DNA data structures able to store and recall information in an ordered way from DNA molecules. They also analyzed how these structures are able to be interfaced with external nucleic acid computing circuits. The team, led by researchers from Newcastle University’s School of Computing, created new dynamic DNA data structures…
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Astronomers detect hydroxyl molecule signature in an exoplanet atmosphere
Astronomers have detected a new chemical signature in the atmosphere of an extrasolar planet (a planet that orbits a star other than our Sun). The hydroxyl radical (OH) was found on the dayside of the exoplanet WASP-33b — a so-called ‘ultra-hot Jupiter’, a gas-giant planet orbiting its host star much closer than Mercury orbits the…
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Physicists observationally confirm Hawking’s black hole theorem for the first time
Physicists have used gravitational waves to observationally confirm Hawking’s black hole theorem. Fifty years later, physicists at MIT and elsewhere have now confirmed Hawking’s area theorem for the first time, using observations of gravitational waves. Their results appear in Physical Review Letters. In the study, the researchers take a closer look at GW150914, the first…
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Astronomers capture black hole eruption spanning 16 times the full Moon in the sky
Astronomers have produced the most comprehensive image of radio emission from the nearest actively feeding supermassive black hole to Earth. The emission is powered by a central black hole in the galaxy Centaurus A, about 12 million light years away. When viewed from Earth, the eruption from Centaurus A now extends eight degrees across the…
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A biochemical random number
Scientists have generated a huge true random number using DNA synthesis. It is the first time that a number of this magnitude has been created by biochemical means. As a rule, they are generated using physical methods. For instance, thanks to the tiniest high-frequency electron movements, the electrical resistance of a wire is not constant…
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First interstellar comet may be the most pristine ever found
New observations indicate that the rogue comet 2I/Borisov, which is only the second and most recently detected interstellar visitor to our Solar System, is one of the most pristine ever observed. Astronomers suspect that the comet most likely never passed close to a star, making it an undisturbed relic of the cloud of gas and…
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Astronomers offer theory about mysterious location of massive stars
Astronomers have found an explanation for the strange occurrence of massive stars located far from their birthplace in the disk of our Milky Way Galaxy. Stars more massive than the Sun have very hot cores that drive nuclear energy generation at very high rates. They are among the brightest objects in our galaxy. But because…