Dragonfish teeth become invisible daggers

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6/9/19 In a first, magnetic fields have been spotted between two galaxy clusters The discovery of magnetic fields in the gaseous filament between two galaxy clusters suggests that some large cosmic structures are magnetized. Read More Tiny structures in dragonfish teeth turn them into invisible daggers The teeth of deep-sea dragonfish are transparent because of nanoscale crystals and rods that let light pass through without being scattered. Read More The Smithsonian’s ‘Deep Time’ exhibit gives dinosaurs new life After five years, the Smithsonian National Museum of Natural History in Washington, D.C., finally reopened its dinosaur hall on June 8. Read More Soil eroded by glaciers may have kick-started plate tectonics  How plate tectonics got going is a mystery. Now scientists say they’ve found a key part of the story: massive piles of sediment dumped in the ocean. Read More A new experiment didn’t find signs of dreaming in brain waves Brain activity that powers dreams may reveal crucial insight into consciousness, but a new study failed to spot evidence of the neural flickers. Read More The accretion disk around our galaxy’s black hole has been spotted at last The finding confirms that gases are orbiting the Milky Way’s gravitational behemoth. Read More Almost all healthy people harbor patches of mutated cells Even healthy tissues can build up mutations, some of which have been tied to cancer. Read More Physicists finally figured out how pentaquarks are built The particles are made of up two smaller particles, stuck together like atoms in a molecule. Read More Hominids may have been cutting-edge tool makers 2.6 million years ago Contested finds point to a sharp shift in toolmaking by early members of the Homo genus. Read More Worms lure two new species of hopping rats out of obscurity In the Philippines, scientists have identified two new species of shrew-rat, an animal whose limited habitat plays host to remarkable biodiversity. Read More Privacy policy  |  Update Profile  | Manage Subscriptions  |   Unsubscribe This email was sent by: Society for Science & the Public 1719 N Street NW Washington, DC, 20036, US