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POPSQuiet Explosion: Object Intermediate Between Normal Supernovae And Gamma-ray Bursts Found Stars that were at birth more massive than about 8 times the mass of our Sun end their relatively short life in a cosmic, cataclysmic firework lighting up the Universe. The outcome is the formation of the densest objects that exist, neutron stars and black holes. When exploding, some of the most massive stars emit a short cry of agony, in the form of a burst of very energetic light, X- or gamma-rays.
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POPSDo Not Read This ! At the current state of our planet, and mounting evidence to human induced climate change, these rich resources of fossil fuels are nothing short of a Faustian proposition.
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POPSDrug for Longer Life The other drug is a small synthetic chemical that is a thousand times as potent as resveratrol in activating sirtuin and can be given at a much smaller dose. Safety tests in people have just started, with no adverse effects so far. The hope is that activating sirtuins in people would, like a calorically restricted diet in mice, avert degenerative diseases of aging like diabetes, heart disease, cancer and Alzheimer’s. There is no Food and Drug Administration category for longevity drugs, so if the company is to submit a drug for approval, it needs to be for a specific disease. Nonetheless, longevity is what has motivated the researchers and what makes the drugs potentially so appealing.
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POPSRevolutionary materials reflect ancient forms Because crystals and quasicrystals comprise different material classes with differing physical and chemical properties, the observed intermediate structure is striking. "The combination of crystalline and quasicrystalline structural elements will likely lead to novel material properties"
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POPSArctic Scientists Explore a "Lost" 26-Million-Year-Old Ecosystem “The origin of life discussion comes up because the rocks that are exposed on this very slow spreading ridge are not volcanic, but instead come directly from Earth’s mantle,” says geochemist Susan Humphris. “The chemistry is very much like the volcanism that occurred on the primordial Earth. If you are thinking about origins of life, you’d like to have an area that is the closest analog to what was happening on the early Earth.”
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POPSEnvironmental Threats of the Future Every technological breakthrough will bring with it new problems and dangers, but also the means to deal with them. We just have to tread carefully and responsibly.
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