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Subtle distortions hidden in ALMA’s stunning image of the gravitational lens SDP.81 are telltale signs that a dwarf dark galaxy is lurking in the halo of a much larger galaxy nearly 4 billion light-years away. This discovery paves the way for ALMA to find many more such objects and could help astronomers address important questions on the nature of dark matter.

The body hairs of the Saharan silver ant cause total internal reflection of light to make the ants almost ten times more reflective, preventing overheating and yielding their silver sheen, according to a study published April 13, 2016 in the open-access journal PLOS ONE by Quentin Willot from the University Libre de Bruxelles, Belgium, and colleagues.

New methods for lithium recovery from natural brine have been studied at Lappeenranta University of Technology (LUT). The methods enabled increasingly effective recovery of lithium and the purity of the lithium solution increased from 95 per cent to 99.9 per cent, which is difficult and resource-intensive to accomplish using traditional methods.

When diners sat down at a recent gourmet experience held at the Harvey Nichols department store in Manchester, their food was filled with bacteria, fungus and mould. Far from being a public health hazard, this special five-course meal was designed to show how microorganisms are a fundamental part of the food we eat.

Researchers at the University of Georgia’s Savannah River Ecology Laboratory warn that the extinction to two amphibian species—the southern toad and the southern leopard frog—may be hastened by the combined effects of climate change and copper-contaminated wetlands.

Deep radio imaging by researchers in the University of Cape Town and University of the Western Cape, in South Africa, has revealed that supermassive black holes in a region of the distant universe are all spinning out radio jets in the same direction – most likely a result of primordial mass fluctuations in the early universe. The astronomers publish their results in a new paper in Monthly Notices of the Royal Astronomical Society.

Longer monsoon seasons with increased daily rainfall, aspects of climate change, are contributing to reduced tea yield in regions of China, with implications for crop management and harvesting strategies, according to findings by a global interdisciplinary team led by Tufts University researchers and published online today in Climate.

For decades, scientists have agreed that comets are mostly water ice, but what kind of ice—amorphous or crystalline—is still up for debate. Looking at data obtained by ESA’s Rosetta spacecraft in the atmosphere, or coma, around comet 67P/Churyumov-Gerasimenko, scientists at Southwest Research Institute (SwRI) are seeing evidence of a crystalline form of ice called clathrates.

Although 98 percent of all organizations have sexual harassment policies, sexual harassment remains an issue in the workplace. Researchers at the University of Missouri are evaluating how employees’ interpretations of sexual harassment policies can invalidate the purpose of the policies

An international team of scientists led by the Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research (AWI) have managed to open a new window into the climate history of the Arctic Ocean. Using unique sediment samples from the Lomonosov Ridge, the researchers found that six to ten million years ago the central Arctic was completely ice-free during summer and sea-surface temperature reached values of 4 to 9 degrees Celsius