Nature News
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![[:es]The pandemic’s true death toll: millions more than official counts[:]](https://katedra.eus/app/uploads/2022/01/d41586-022-00104-8_20032068.jpg)
[:es]The pandemic’s true death toll: millions more than official counts[:]
[:es] Countries have reported some five million COVID-19 deaths in two years, but global excess deaths are estimated at double or even quadruple that figure. [:]
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![[:es]The COVID generation: how is the pandemic affecting kids’ brains?[:]](https://katedra.eus/app/uploads/2022/01/d41586-022-00027-4_20009338.jpg)
[:es]The COVID generation: how is the pandemic affecting kids’ brains?[:]
[:es] Child-development researchers are asking whether the pandemic is shaping brains and behaviour. [:]
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![[:es]Mars mission is China’s ‘first step’ in planetary exploration[:]](https://katedra.eus/app/uploads/2022/01/d41586-021-03849-w_19972514.jpg)
[:es]Mars mission is China’s ‘first step’ in planetary exploration[:]
[:es] Nature talks to Zhang Rongqiao, architect of the China National Space Administration’s Tianwen-1 mission, which landed the Zhurong rover on Mars. [:]
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![[:es]Alternatives to standard quantum theory ruled out[:]](https://katedra.eus/app/uploads/2021/04/PNG-1-6.png)
[:es]Alternatives to standard quantum theory ruled out[:]
[:es] Standard quantum theory contains square roots of negative numbers. But how essential are these ‘imaginary’ numbers? A way of disproving analogous theories that omit them has been proposed — […]
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![[:es]NASA spacecraft ‘touches’ the Sun for the first time ever[:]](https://katedra.eus/app/uploads/2021/12/d41586-021-03751-5_19954416.jpg)
[:es]NASA spacecraft ‘touches’ the Sun for the first time ever[:]
[:es] The Parker Solar Probe has passed through a boundary and into the Sun’s atmosphere, gathering data that will help scientists better understand stars. [:]
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![[:es]Half of top cancer studies fail high-profile reproducibility effort[:]](https://katedra.eus/app/uploads/2021/12/d41586-021-03691-0_19945212.jpg)
[:es]Half of top cancer studies fail high-profile reproducibility effort[:]
[:es] Barriers to reproducing preclinical results included unhelpful author communication, but critics argue that one-time replication attempts don’t tell the whole story. [:]
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![[:es]This tiny iron-rich world is extraordinarily metal[:]](https://katedra.eus/app/uploads/2021/12/d41586-021-03587-z_19918996.jpg)
[:es]This tiny iron-rich world is extraordinarily metal[:]
[:es] The discovery of GJ 367b, which orbits its star in about 8 hours, demonstrates astronomers’ prowess at finding extreme planets. [:]
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![[:es]China’s Mars rover has amassed reams of novel geological data[:]](https://katedra.eus/app/uploads/2021/12/d41586-021-03554-8_19900266.jpg)
[:es]China’s Mars rover has amassed reams of novel geological data[:]
[:es] Data collected by the Tianwen-1 mission and Zhurong Mars rover are offering insights into a previously unexplored region of Mars’s northern hemisphere. [:]
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![[:es]How record wildfires are harming human health[:]](https://katedra.eus/app/uploads/2021/11/d41586-021-03496-1_19879526.jpg)
[:es]How record wildfires are harming human health[:]
[:es] As fires get bigger and rage for more of the year, scientists are racing to understand the lingering impacts. [:]