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Science
“#Seaweed takes scientists on trip ‘through time’ in the waters of Monterey Bay” Credit: Unsplash/CC0 Public Domain New research led by Monterey Bay Aquarium is helping to unlock the natural history of one of the most studied places on the planet. By tapping into a collection of dried, pressed seaweed—that dates back more than 140…
“#New ideas in the search for dark matter” This Hubble Space Telescope composite image shows a ghostly “ring” of dark matter in a galaxy cluster. Credit: NASA, ESA, M.J. Jee and H. Ford (Johns Hopkins University) Since the 1980s, researchers have been running experiments in search of particles that make up dark matter, an invisible…
“#New research reveals geographical processes behind perplexing fluvial strata” River dune deposits compacted to form the Torridonian sandstone. Notebook for scale. Credit: VAMSI GANTI The Torridon sandstone in northwestern Scotland preserves six kilometers of river sediment from Precambrian times. But what sort of geological events were able to leave their mark for researchers to find 1…
“#Research reveals the chemistry behind the bombardier beetle’s extraordinary firepower” Credit: Stevens Institute of Technology If you want to see one of the wonders of the natural world, just startle a bombardier beetle. But be careful: when the beetles are scared, they flood an internal chamber with a complex cocktail of aromatic chemicals, triggering a…
“#’Relaxed’ T cells critical to immune response” Rice University scientists’ simple model of T cell activation of the immune response shows the T cell binding, via a receptor (TCR) to an antigen-presenting cell (APC). If an invader is identified as such, the response is activated, but only if the “relaxation” time of the binding is…
“#Using sunlight to save satellites from a fate of ‘space junk’” Carolin Frueh and her students are helping to identify problems with satellites in space based on how they reflect sunlight. Credit: Purdue University photo/Rebecca McElhoe No satellite stays the same once launched into space. How much it changes can go unnoticed—until something bad happens….
“#Honeybee lives shortened after exposure to two widely used pesticides” One cage from each of the three experimental groups in an Oregon State University honeybee study. The control cage on the far left has more live bees than the cages in which the bees were exposed to Sivanto (middle) and Transform (far right). Credit: Priyadarshini…
“#The nexus between economic inequality and social welfare” Credit: CC0 Public Domain Equity (or, its counterpart, inequity) plays a fundamental role in the evaluation of the different dimensions of social welfare. But how can we consider and compare its different dimensions? These issues are in fact traditionally considered and compared across individuals—be it within national…
“#Coal-burning in Siberia led to climate change 250 million years ago” A lump of coal weathering out from Siberian flood basalts in a quarry near the town of Ust Ilimsk Credit: Scott Simper A team of researchers led by Arizona State University (ASU) School of Earth and Space Exploration professor Lindy Elkins-Tanton has provided the…
“#Cattle vs. hippopotamus: Dung in rivers of the savannah” Hippos in the Mara River in Kenya. Credit: Gabriel Singer In many regions of the world, populations of large mammalian herbivores have been displaced by cattle breeding—for example, in Kenya, hippos by large herds of cattle. This can change aquatic ecosystems due to significant differences in…