New evidence suggests it was matter ejected from the Chicxulub crater that led to impact winter

A large asteroid (~12 km in diameter) hit Earth 66 million years ago, likely causing the end-Cretaceous mass extinction. Credit: Southwest Research Institute/Don Davis A team of researchers from the U.S., Australia and the U.K. ....

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An extremely social robotic fish helps unravel the collective patterns of animal groups

Using state-of-the-art robotics, a research team from the University of Konstanz, Science of Intelligence, and the Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB) shows that animals' speed is fundamental for collective behavioral patterns, ....

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Paving the way for tunable graphene plasmonic THz amplifiers

Measured absorption/amplification spectra of the device response to the terahertz pulse wave radiation. The terahertz wave pulse was emitted while increasing the drain voltage of the prototype graphene transistor. Absorption characteristics (frequency spectrum) of the ....

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How to imitate natural spring-loaded snapping movement without losing energy

Credit: CC0 Public Domain Venus flytraps do it, trap-jaw ants do it, and now materials scientists at the University of Massachusetts Amherst can do it, too—they discovered a way of efficiently converting elastic energy in ....

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Diversifying crop rotations improves environmental outcomes while keeping farms profitable

Credit: CC0 Public Domain A new study from researchers at the University of Minnesota and Iowa State University finds that diversifying crop rotations can greatly reduce negative environmental and health impacts, while maintaining profitability for ....

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Differing diets of bonobo groups may offer insights into how culture is created

Bonobos interacting in tolerant intergroup encounters in Kokolopori bonobos. Credit: the Kokolopori Bonobo Research Project/Liran Samuni Human societies developed food preferences based on a blend of what was available and what the group decided it ....

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Forging molecular bonds with green light

Credit: Queensland University of Technology (QUT) QUT researchers have created a new molecular coupling tool employing both green light and pH triggers that has potential for use in applications such as drug delivery and 3-D ....

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New cataclysmic variable star discovered

A pseudo-color image of KSN:BS-C11a constructed from g, r, and i filter images obtained with DECam on the CTIO 4.0 m telescope. Credit: Ridden-Harper et al., 2020. Using NASA's Kepler spacecraft, astronomers have detected a ....

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Bio-based communication networks could control cells in the body to treat conditions

Credit: CC0 Public Domain Like electronic devices, biological cells send and receive messages, but they communicate through very different mechanisms. Now, scientists report progress on tiny communication networks that overcome this language barrier, allowing electronics ....

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