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Life

E. coli genome has been remade with 101,000 changes to its DNA

The recoded bacterium uses only 57 of the 64 possible genetic codes, freeing up seven to be used for different purposes

Environment

US says CO2 emissions aren’t harmful – climate science shows otherwise

Life

Mystery of the potato’s origins solved by genetics

Health

Common artificial sweetener may interfere with cancer treatments

Earth

Longest lightning ‘mega-flash’ sets a shocking new record

Life

Critics of de-extinction research hit by mystery smear campaign

A 3D model of the tattooed mummy. The top image features textures derived from photographs that were captured using light visible to the human eye, while the bottom image's textures were derived from near-infrared photography, which we cannot see

Humans

Ancient Siberian ice mummy is covered in ‘really special’ tattoos

Health

Human milk could help fight infections that endanger pregnancies

Electron micrograph of the HIV pathogen

Health

Human trials point the way towards an mRNA vaccine against HIV

JIAXING, CHINA - JULY 27: Tourists watch tidal bore of the Qiantang River on July 27, 2025 in Jiaxing, Zhejiang province of China. A tidal bore of the Qiantang River arrives at its most heyday. (Photo by VCG/VCG via Getty Images)

Environment

See the world’s largest tidal bore on the Qiantang river in China

Known by locals as the Silver Dragon, this tidal bore can reach 4 metres tall and travel at speeds of up to 10 metres per second

Life

How life thrives in one of the most hostile environments on Earth

Chemistry

Extra-hard hexagonal diamonds can now be grown in a lab

Health

Covid-19 and flu may reawaken dormant cancer cells in the lungs

Why climate scientists are analysing the world’s oldest ice core