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Wide view of the telescope mount inside the dome

Space

Vera C. Rubin Observatory will start scanning the night sky in 2024

A massive telescope in Chile is set to begin operations in 2024, and once it is up and running the pictures will be extraordinary

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Climate activists protest after a draft of a negotiation deal was released, at the United Nations Climate Change Conference COP28 in Dubai, United Arab Emirates, December 13, 2023. REUTERS/Rula Rouhana - RC25W4A9Z99Q

Environment

Will 2024 see the world finally turning away from fossil fuels?

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2R2AKY2 Advertising for Wegovy (semaglutide) weight loss injections in the New York subway on Sunday, April 30, 2023. (? Richard B. Levine)

Health

2024 will see a new weight-loss drug that trumps Wegovy and Ozempic

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A0XHR7 Fall colored trees reflected off Crawford Lake Ontario Canada

Earth

We might officially enter the Anthropocene epoch in 2024

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Mathematics

Mathematicians found a guaranteed way to win the lottery in 2023

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Earth

China started drilling ultra-deep holes in 2023 in a hunt for oil

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Technology

The best robot photos of 2023, from fashion shows to Hollywood strikes

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MRI scans of a healthy brain (left) and a brain with amyloid plaque deposits (right), a sign of Alzhiemer's disease

Health

2023 saw a cautious hope for Alzheimer's treatment but doubts remain

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Life

The best animal photos of 2023, from hyenas to southern stingrays

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Environment

The best photos of the natural world in 2023

A fiery volcanic eruption, a flower preserved in amber and a ‘superbloom’ of wildflowers feature in 91av’s selection of stunning nature images from the past year

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Chemistry

Material made of carbon and nitrogen is nearly as hard as diamond

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Space

The biggest science news stories of 2023 as chosen by 91av

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Health

Cancer in young people is rising and 2023 saw a plan to figure out why

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Health

Wegovy and Ozempic made 2023 a revolutionary year for weight loss

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