Nature News
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![[:es]This black-hole collision just made gravitational waves even more interesting[:]](https://katedra.eus/app/uploads/2020/04/d41586-020-01153-7_17910610.jpg)
[:es]This black-hole collision just made gravitational waves even more interesting[:]
[:es] An unprecedented signal from unevenly sized objects gives astronomers rare insight into how black holes spin. [:]
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![[:es]Revealed: How a spacecraft will bring Mars rocks to Earth[:]](https://katedra.eus/app/uploads/2020/04/d41586-020-01114-0_17897510.jpg)
[:es]Revealed: How a spacecraft will bring Mars rocks to Earth[:]
[:es] NASA and the European Space Agency firm up plans to return the first samples from the Red Planet. [:]
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![[:es]Bats are a key source of human viruses — but they’re not special[:]](https://katedra.eus/app/uploads/2020/04/d41586-020-01096-z_17888408.jpg)
[:es]Bats are a key source of human viruses — but they’re not special[:]
[:es] Statistical analyses suggest that surveillance efforts for the next pandemic look beyond the flying mammals. [:]
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![[:es]Why measles deaths are surging — and coronavirus could make it worse[:]](https://katedra.eus/app/uploads/2020/04/d41586-020-01011-6_17863536.jpg)
[:es]Why measles deaths are surging — and coronavirus could make it worse[:]
[:es] The world’s most contagious virus has killed thousands in the Democratic Republic of the Congo, and 23 countries have suspended measles vaccination campaigns as they cope with SARS-CoV-2. [:]
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![[:es]How sewage could reveal true scale of coronavirus outbreak[:]](https://katedra.eus/app/uploads/2020/04/d41586-020-00973-x_17851422.jpg)
[:es]How sewage could reveal true scale of coronavirus outbreak[:]
[:es] Wastewater testing could also be used as an early-warning sign if the virus returns. [:]
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![[:es]Mathematical proof that rocked number theory will be published[:]](https://katedra.eus/app/uploads/2020/04/d41586-020-00998-2_17862022.jpg)
[:es]Mathematical proof that rocked number theory will be published[:]
[:es] But some experts say author Shinichi Mochizuki failed to fix fatal flaw in solution of major arithmetics problem. [:]
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![[:es]Coronavirus lockdowns have changed the way Earth moves[:]](https://katedra.eus/app/uploads/2020/04/d41586-020-00965-x_17843574.jpg)
[:es]Coronavirus lockdowns have changed the way Earth moves[:]
[:es] A reduction in seismic noise because of changes in human activity is a boon for geoscientists. [:]
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![[:es]Should scientists infect healthy people with the coronavirus to test vaccines?[:]](https://katedra.eus/app/uploads/2020/03/d41586-020-00927-3_17837180.jpg)
[:es]Should scientists infect healthy people with the coronavirus to test vaccines?[:]
[:es] Radical proposal to conduct ‘human challenge’ studies could dramatically speed up vaccine research. [:]
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![[:es]Predators on track for ocean protection around Antarctica[:]](https://katedra.eus/app/uploads/2020/03/d41586-020-00640-1_17764900.jpg)
[:es]Predators on track for ocean protection around Antarctica[:]
[:es] Satellite tracking of marine predators in the Southern Ocean has revealed key ecological areas under disproportionate pressure from human activities. These results show the value of tracking data for informing conservation efforts. [:]