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Science

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University of Vienna, Tetyana Milojevic, Frontiers in Microbiology, MARS, Fingerprints, Faculty of Chemistry, Metallosphaera sedula , archaeon, Metabolism, Microbes, biosignatures, extraterrestrial minerals, microbial activity, astrobiologist , Mars farm, Mars Regolith

Microbes Leave "Fingerprints" on Martian Rocks

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Scientists around Tetyana Milojevic from the Faculty of Chemistry at the University of Vienna are in search of unique biosignatures, which are left on synthetic extraterrestrial minerals by microbial activity. The biochemist and astrobiologist investigates these signatures at her own miniaturized "Mars farm" where she can observe interactions between the archaeon Metallosphaera sedula and Mars-like rocks. These microbes are capable of oxidizing and integrating metals into their metabolism. The original research was currently published in the journal "Frontiers in Microbiology".

Science

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Cosmology, Big Bang, cosmic inflation, Three Dimensional Space, Knot Theory, Quark Gluon, quark gluon plasma

Filling the Early Universe with Knots Can Explain Why the World Is Three-Dimensional

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Filling the universe with knots shortly after it popped into existence 13.8 billion years ago provides a neat explanation for why we inhabit a three-dimensional world. That is the basic idea advanced by an out-of-the-box theory developed by an international team of physicists.

Science

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soil, Microbiology, micro organism, Luminescence

Are There Really Glow-in-the-Dark Soil Organisms?

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Soil organisms are diverse, with characteristics that can astound. The Soil Science Society of America (SSSA) October 15 Soils Matter blog post explains which soil critters glow—and why.

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quantum materials, scanning probe microscopy, Semiconductor, Electronics, topological insulators, Spintronics, Quantum Computing, spin current, condensed matter physics, high-resolution

New Method to Detect Spin Current in Quantum Materials Unlocks Potential for Alternative Electronics

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A new method that precisely measures the mysterious behavior and magnetic properties of electrons flowing across the surface of quantum materials could open a path to next-generation electronics. A team of scientists has developed an innovative microscopy technique to detect the spin of electrons in topological insulators, a new kind of quantum material that could be used in applications such as spintronics and quantum computing.

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stellar astronomy, star dimming, Kepler Mission, Spitzer Space Telescope, NASA Swift satellite

Astronomers Say Star Dust Helps Explain Mysterious Dimming Star

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Iowa State's Massimo Marengo is part of a team of astronomers working to understand the mysterious dimming of Tabby's Star. The astronomers report that space dust orbiting the star -- not alien megastructures -- is the likely cause of the star's long-term dimming.

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Environment, Health, Children, Watersheds, Trees, Global Health, Disease, Public Health, Big Data, Civil and Environmental Engineering , Natural Infrastructure

Global Kids Study: More Trees, Less Disease

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A study of 300,000 children in 35 nations says kids whose watersheds have greater tree cover are less likely to experience diarrheal disease, the second leading cause of death for children under the age of five.

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El Nino, ENSO, El Nino Southern Oscillation, Climate, Climate Change, Science, Weather, Meteorology, Ocean, Pacific Ocean, Tropical Pacific, sulfur dioxide, sulfuric acid, Environment, Volcanoes, Stratosphere, Mount Pinatubo, Africa, West African Monsoon, Philippines, Santa Maria, Guatemala, Mount Agung, Indonesia, El Chichón , Mexico, Rutgers University-New Brunsw

Large Volcanic Eruptions in Tropics Can Trigger El Niño Events

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Explosive volcanic eruptions in the tropics can lead to El Niño events, those notorious warming periods in the Pacific Ocean with dramatic global impacts on the climate, according to a new study.

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Genes That Separate Humans From Fruit Flies Found

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Genes which determine animal complexity – or what makes humans so much more complex than a fruit fly or a sea urchin – have been identified for the first time.

Science

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Astronomy, Astrophysics, Cosmic Rays, Pierre Auger Observatory, Galaxy, Space

Observatory Detects Extragalactic Cosmic Rays Hitting the Earth

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Fifty years ago, scientists discovered that the Earth is occasionally hit by cosmic rays of enormous energies. Since then, they have argued about the source of those ultra-high energy cosmic rays—whether they came from our galaxy or outside the Milky Way. The answer is a galaxy or galaxies far, far away, according to a report published Sept. 22 in Science by the Pierre Auger Collaboration.

Science

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Michigan Tech, Pierre Auger Observatory, Cosmic Rays, Physics & Astronomy, Galaxy, Particle Physics, Space

Detecting Cosmic Rays from a Galaxy Far, Far Away

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Where do cosmic rays come from? Solving a 50-year old mystery, a collaboration of researchers has discovered it's much farther than the Milky Way.







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