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Science
“#Advanced Cryo-EM reveals viral RNA replication complex structure in stunning detail” Cryo-EM imaging reveals high-resolution side and top views of the viral RNA replication “crown” complex structure. Credit: Paul Ahlquist, Morgridge Institute for Research For the first time, scientists at the Morgridge Institute for Research have generated near atomic resolution images of a major viral…
“#Study reveals strange magnetic behaviour 8-11 million years ago” A map of the Earth showing the present-day deviation from expected magnetic field direction. Strong deviations are in yellow-orange, and little deviations are in blue. The star is Saint Helena, which is right in the anomaly. The grey line shows the outline of the seismic area…
“#Cellular signaling cascade balances information transmission against energy consumption, study says” Credit: CC0 Public Domain Cellular signal transmission is not only optimized for precision—it also includes a cost cap. The relationship between information and energy, a concept well established in physics and engineering, is likely to fundamentally shape cellular signaling networks. One of the questions…
“#Could mini-Neptunes be irradiated ocean planets?” Credit: CC0 Public Domain Many exoplanets known today are ‘super-Earths,’ with a radius 1.3 times that of Earth, and ‘mini-Neptunes,’ with 2.4 Earth radii. Mini-Neptunes, which are less dense, were long thought to be gas planets, made up of hydrogen and helium. Now, scientists at the Laboratoire d’Astrophysique de…
“#Buried GitHub archival storage to last 1,000 years” Credit: Pixabay/CC0 Public Domain If civilization ever succumbs to global warming, nuclear annihilation, an unrelenting pandemic or a martian invasion, some future civilization—or alien life form—might well still be able to reconstruct today’s computers and compose advanced machine learning algorithms … and perhaps even play a round…
“#Climate change on track to wipe out polar bears by 2100” On current trends, polar bears in 18 of 19 subpopulations will have been overtaken within 80 years by the galloping pace of change in the Arctic Climate change is starving polar bears into extinction, according to research published Monday that predicts the apex carnivores…
“#Crowds removing sea creatures from San Pedro tide pools put delicate ecosystem at risk” Credit: CC0 Public Domain It was against the backdrop of a pounding surf one recent morning that almost 30 people had gathered on the cragged and slippery folds of White Point tidal pools in San Pedro and set to work with…
“#Mysterious 450-foot ‘blue hole’ off Florida has researchers looking for signs of life” Credit: Unsplash/CC0 Public Domain Tales of the ocean swallowing places are as ancient as the myth of Atlantis, but there is an element of truth in the science, according to a NOAA-backed expedition set for Florida’s Gulf Coast. The ocean does open…
“#How governments resist World Heritage ‘in Danger’ listings” Credit: CC0 Public Domain A study published today found national governments repeatedly resisted the placement of 41 UNESCO World Heritage sites—including the Great Barrier Reef—on the World Heritage in Danger list. This resistance is despite the sites being just as threatened, or more threatened, than those already…
“#Geoscientists provide data suggesting global climate changes increase river erosion” Broad surfaces called terraces preserve ancient river floodplains and landscape history up to hundreds of meters above the Fortymile River, a tributary of the Yukon River, in eastern Alaska. Researchers from the USGS, the University of Vermont, Purdue University and Utah State University publish definitive…