Gravitational tug-of-war inside Earth is changing the length of our days

Nature, Published online: 23 September 2026; doi:10.1038/d41586-026-03018-xA battle of forces, driven by the motion of Earth’s core, can explain small variations in the planet’s rotation, study finds.

Nature, Published online: 23 September 2026; doi:10.1038/d41586-026-03018-x

A battle of forces, driven by the motion of Earth’s core, can explain small variations in the planet’s rotation, study finds.

Why are El Niños getting stronger? 1000-year-coral record points to climate change

Nature, Published online: 27 August 2026; doi:10.1038/d41586-026-02717-9A reconstruction of Pacific Ocean sea surface temperatures adds to the evidence that human-caused warming is boosting El Niño events.

Nature, Published online: 27 August 2026; doi:10.1038/d41586-026-02717-9

A reconstruction of Pacific Ocean sea surface temperatures adds to the evidence that human-caused warming is boosting El Niño events.

Billion-dollar machine aims to set a fusion-energy record — and study nuclear weapons

Nature, Published online: 24 August 2026; doi:10.1038/d41586-026-02620-3Pacific Fusion is breaking ground next door to a US nuclear-weapons laboratory, hoping the partnership will give it an edge.

Nature, Published online: 24 August 2026; doi:10.1038/d41586-026-02620-3

Pacific Fusion is breaking ground next door to a US nuclear-weapons laboratory, hoping the partnership will give it an edge.

Fires in Europe are breaking records: here’s what the future holds

Nature, Published online: 30 July 2026; doi:10.1038/d41586-026-02361-3Countries such as Spain and France can expect fire regimes more like those of California as climate change favours hot, dry conditions, scientists suggest.

Nature, Published online: 30 July 2026; doi:10.1038/d41586-026-02361-3

Countries such as Spain and France can expect fire regimes more like those of California as climate change favours hot, dry conditions, scientists suggest.

First mission to fly through monstrous ‘fire clouds’ is about to take off

Nature, Published online: 28 July 2026; doi:10.1038/d41586-026-02351-5The towering formations appearing over severe wildfires in France and Oregon loft smoke so high they have global consequences.

Nature, Published online: 28 July 2026; doi:10.1038/d41586-026-02351-5

The towering formations appearing over severe wildfires in France and Oregon loft smoke so high they have global consequences.

This El Niño is set to be the largest on record by a ‘mind-blowing margin’

Nature, Published online: 23 July 2026; doi:10.1038/d41586-026-02293-yForecasters predict that the monster climate pattern will combine with global warming to push global temperatures in 2027 to new heights.

Nature, Published online: 23 July 2026; doi:10.1038/d41586-026-02293-y

Forecasters predict that the monster climate pattern will combine with global warming to push global temperatures in 2027 to new heights.