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Ozone is a colorless combination of three oxygen atoms. High in the atmosphere, about 7 to 25 miles above the Earth, ozone shields Earth from ultraviolet rays that cause skin cancer, crop damage and other problems.

Scientists at the United Nation a few years ago determined that without the 1987 treaty there would have been an extra 2 million skin cancer cases by 2030. They said overall the ozone layer is beginning to recover because of the phase-out of chemicals used in refrigerants and aerosol cans.

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Editor’s Note: The Falling Walls Conference is an annual, global gathering of forward thinking individuals from 80 countries organized by the Falling Walls Foundation. Each year, on November 9—the anniversary of the fall of the Berlin Wall—20 of the world’s leading scientists are invited to Berlin to present their current breakthrough research. The aim of the conference is to address two questions: Which will be the next walls to fall? And how will that change our lives? The author of the following essay is speaking at this year’s Falling Walls gathering.

This is more than just another industrial revolution—it is something that transcends humankind and even biology.

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We wouldn’t blame you for thinking that Julius Horsthuis spent weeks designing and animating his sci-fi short, Fraktaal, using 3D software. But as the artist reveals, “It so happens that I’m a lazy animator.” So he instead relied on complex mathematical fractal patterns to automatically generate the alien worlds and cities visited in his film.

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The folks at Kurzgesagt have created another great video about aging and thanks to them for giving us the opportunity to work with them in creating this video. If you would like to support our work check out (https://www.lifespan.io/campaigns/join-us-become-a-lifespan-hero/).

The video today discusses the near future technologies that are changing how we treat aging and could potentially bring it under medical control soon. It is important to discuss this topic now and its great to see popular channels like Kurzgesagt are keen to get involved in that dialogue.

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The CRISPR-Cas9 system has revolutionised gene-editing, but cutting DNA isn’t all it can do. From turning gene expression on and off to fluorescently tagging particular sequences, this animation explores some of the exciting possibilities of CRISPR.

Download a poster on ‘The expanding CRISPR toolbox’ here: https://www.nature.com/posters/crisprtoolbox

Produced with support from Dharmacon: https://www.dharmacon.com

Nature has full responsibility for all editorial content, including Nature Video content. This content is editorially independent of sponsors.

Continue reading “Gene editing and beyond” | >

China’s heaviest cargo unmanned aerial vehicle (UAV) AT200 prepares for its maiden flight in Neifu Airport in Pucheng, northwest China’s Shaanxi Province, Oct. 26, 2017. China’s heaviest cargo unmanned aerial vehicle (UAV) completed its maiden flight in northwest China’s Shaanxi Province Thursday. With a maximum take-off weight of around 3.4 tonnes and a payload of 1.5 tonnes, the AT200 could be one of the world’s most powerful civilian UAVs. (Xinhua)

BEIJING, Oct. 27 (Xinhua) — China’s heaviest cargo unmanned aerial vehicle (UAV) completed its maiden flight in northwest China’s Shaanxi Province Thursday.

The AT200 drone, jointly developed by several research institutes and companies, made a successful 26-minute maiden flight, according the Institute of Engineering Thermophysics.

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In many ways, stem cells are the divas of the biological world. On the one hand, these natural shapeshifters can transform themselves into virtually any type of cell in the body. In that regard, they hold the promise of being able to cure ills ranging from spinal cord injuries to cancers.

On the other hand, said associate professor of materials science and engineering Sarah Heilshorn, , like divas, are also mercurial and difficult to work with.

“We just don’t know how to efficiently and effectively grow massive numbers of stem and keep them in their regenerative state,” Heilshorn said. “This has prevented us from making more progress in creating therapies.”

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A new drug being trialled for treating breast cancer and diabetes has been shown to ‘melt away’ the fat inside arteries that can cause heart attacks and strokes.

Researchers from the University of Aberdeen, using pre-clinical mouse models, showed that just a single dose of the drug (Trodusquemine) completely reversed the effects of a disease that causes a host of heart problems.

Atherosclerosis is the build-up of fatty material inside the arteries.

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