This image shows a false-colored electron microscope image of the University of Minnesota device. The blue area marks the topological insulator on top of the optical waveguide in red. Credit: University of Minnesota Light can generate an electrical current in semiconductor...
Tomato plants produce repellent chemicals called volatile organic compounds in response to herbivore attacks. (Stock image) Credit: © slavomir pancevac / Fotolia In sports, sometimes a player has to take one for the team. The same appears to be true in...
Reconstruction of Halszkaraptor escuilliei. This small dinosaur was a close relative of Velociraptor, but in both body shape and inferred lifestyle it much closely recalls some waterbirds like modern swans. Credit: Lukas Panzarin; and Andrea Cau for scientific supervision An exceptionally...
MIT scientists have determined the structure of an enzyme that is found in ocean microbes and can produce a precursor to methane. Credit: David Born Industrial and agricultural activities produce large amounts of methane, a greenhouse gas that contributes to global...
Purple finches, indicators of healthy coniferous habitat, are declining in the Northwest, according to data from the Klamath Bird Observatory. Credit: J. Livaudais Populations of many North American songbirds are declining, and in many cases we don't understand why -- for...
Cosmic rays interacting with the Earth's atmosphere producing ions that helps turn small aerosols into cloud condensation nuclei -- seeds on which liquid water droplets form to make clouds. A proton with energy of 100 GeV interact at the...
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Mars: Not as dry as it seems

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This is image shows modern Mars (left) dry and barren, compared with the same scene over 3.5 billion years ago covered in water (right). The rocks of the surface were slowly reacting with the water, sequestering it into the...
Cyclone Chapala over the Gulf of Aden Nov. 2, 2015. Credit: NASA image by Jeff Schmaltz, LANCE/EOSDIS Rapid Response Researchers from Princeton University and the National Oceanic and Atmospheric Administration (NOAA) report in the journal Nature Climate Change that extreme cyclones...
Adams Flat, one of the two sites in Antarctica where microbes were collected. Credit: Phil O'Brien UNSW-Sydney led scientists have discovered that microbes in Antarctica have a previously unknown ability to scavenge hydrogen, carbon monoxide and carbon dioxide from the air...
This is a map of recent Hawaiian volcanism, highlighting the Loa and Kea tracks. Credit: Tim Jones, ANU A study led by The Australian National University (ANU) has solved the 168-year-old mystery of how the world's biggest and most active volcanoes...
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The coldest chip in the world

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A chip with a Coulomb blockade thermometer on it is prepared for experiments at extremely low temperatures. Credit: University of Basel, Department of Physics Physicists at the University of Basel have succeeded in cooling a nanoelectronic chip to a temperature lower...