Nature News
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![[:es]How far will global population rise? Researchers can’t agree[:]](https://katedra.eus/app/uploads/2021/09/d41586-021-02522-6_19673290.jpg)
[:es]How far will global population rise? Researchers can’t agree[:]
The United Nations forecasts that nearly 11 billion people will be living on Earth at the end of the century, but other demographic research groups project that population will peak […]
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![[:es]New type of dark energy could solve Universe expansion mystery[:]](https://katedra.eus/app/uploads/2021/09/d41586-021-02531-5_19667322.jpg)
[:es]New type of dark energy could solve Universe expansion mystery[:]
Hints of a previously unknown, primordial form of the substance could explain why the cosmos now seems to be expanding faster than theory predicts.
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![[:es]Trove of CRISPR-like gene-cutting enzymes found in microbes[:]](https://katedra.eus/app/uploads/2021/09/d41586-021-02461-2_19642728.jpg)
[:es]Trove of CRISPR-like gene-cutting enzymes found in microbes[:]
The search for a CRISPR enzyme’s ancestors has revealed more than one million potential genome-editing tools.
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![[:es]Most fossil-fuel reserves must remain untapped to hit 1.5 °C warming goal[:]](https://katedra.eus/app/uploads/2021/09/d41586-021-02444-3_19638230.jpg)
[:es]Most fossil-fuel reserves must remain untapped to hit 1.5 °C warming goal[:]
Modelling suggests that many planned coal, oil and gas extraction projects will not be viable if the world hopes to achieve climate targets.
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![[:es]What’s next for lab-grown human embryos?[:]](https://katedra.eus/app/uploads/2021/09/d41586-021-02343-7_19600658.jpg)
[:es]What’s next for lab-grown human embryos?[:]
Researchers are now permitted to grow human embryos in the lab for longer than 14 days. Here’s what they could learn.
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![[:es]Australia’s cane toads evolved as cannibals with frightening speed[:]](https://katedra.eus/app/uploads/2021/09/d41586-021-02317-9_19590920.jpg)
[:es]Australia’s cane toads evolved as cannibals with frightening speed[:]
Study finds that the noxious pests have become so numerous, they’ve developed a taste for each other — as well as defences to ward off such attacks.
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![[:es]Water transformed into shiny, golden metal[:]](https://katedra.eus/app/uploads/2021/07/d41586-021-02065-w_19399070.jpg)
[:es]Water transformed into shiny, golden metal[:]
Electrons from a droplet of sodium and potassium turn water into a metallic material that conducts electricity.
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![[:es]Single chip tests thousands of enzyme mutations at once[:]](https://katedra.eus/app/uploads/2021/07/d41586-021-02034-3_19383230.jpg)
[:es]Single chip tests thousands of enzyme mutations at once[:]
The technique vastly speeds up understanding of how the proteins function and how to target drugs.
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![[:es]China’s space station is preparing to host 1,000 scientific experiments[:]](https://katedra.eus/app/uploads/2021/07/d41586-021-02018-3_19382518.jpg)
[:es]China’s space station is preparing to host 1,000 scientific experiments[:]
Researchers around the world are eagerly awaiting the completion of Tiangong, to study topics from dark matter and gravitational waves to the growth of cancer and pathogenic bacteria.