SCIENCE

Sinking trees in Arctic Ocean could remove 1 billion tonnes of CO2

Trees floating towards the Arctic Ocean Carl Christoph Stadie/The Alfred Wegener Institute Cutting down swathes of boreal forest and sinking

SCIENCE

Tree bark microbiome has important overlooked role in climate

Melaleuca wetland forests in New South Wales, Australia, are hotspots for tree microbial life Luke Jeffrey / Southern Cross University

SCIENCE

Northern Greenland ice dome melted before and could melt again

Researchers working at Prudhoe Dome in Greenland Caleb K. Walcott-George An ice dome in northern Greenland once melted completely at

SCIENCE

Fossil analysis adds to debate over how earliest known hominin walked

Sahelanthropus fossils (centre) compared with a chimpanzee (left) and a human (right) Wiliams et al., Sci. Adv. 12, eadv0130 A

SCIENCE

Star that seemed to vanish more than 130 years ago is found again

An image captured by a telescope at the Grasslands Observatory in Arizona. The “x” is where E. E. Barnard saw

SCIENCE

Mathematicians spent 2025 exploring the edge of mathematics

When numbers get large, things get weird Jezper / Alamy In 2025, the edges of mathematics came a little more

SCIENCE

Physicists used ‘dark photons’ in an effort to rewrite physics in 2025

Dark photons offer a new explanation for the double-slit experiment RUSSELL KIGHTLEY/SCIENCE PHOTO LIBRARY A core tenet of quantum theory

SCIENCE

Putting data centres in space isn’t going to happen any time soon

Starcloud wants to build a data centre satellite that is 4 kilometres by 4 kilometres Starcloud Could AI’s insatiable thirst

SCIENCE

Roman soldiers defending Hadrian’s Wall had intestinal parasites

3rd-century baths and latrine block at Vindolanda, the Roman fort close to Hadrian’s Wall in the UK Vindolanda Trust Despite

SCIENCE

The world will soon be losing 3000 glaciers every year

Meltwater runs through a glacier cave at the front of Morteratsch glacier in Switzerland Lander Van Tricht About 1000 glaciers