The lack of methods for preparing miniature lasers directly on silicon wafers is holding back photonic technology in a range of applications, including machine learning. The solution could be to ...

The use of genetic ancestry to trace history and probe events of the past is challenging because ancestries in many locations are relatively similar, making it hard to distinguish groups and ...

We investigate how ancient humans ran and hear from climate scientists who are rising to the challenges of an impending Trump presidency. We hear that a 2020 study promoting hydroxychloroquine for ...

More than 100 clinical trials put stem cells for regenerative medicine to the test. It’s a turning point for a field beset with ethical and political controversy.

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People have profoundly altered the planet’s soundscape. It’s time to quieten down so that other species can thrive.

People have profoundly altered the planet’s soundscape. It’s time to quieten down so that other species can thrive.

New and repurposed obesity drugs, daring space missions and climate-action policies are among the developments set to shape research in 2025.

Artefacts from a Mesopotamian archaeological site suggest that people in the region founded and later rejected an early form of the organized state.

The current international financial architecture is a key reason that the UN Sustainable Development Goals are failing. A landmark conference in Spain must make progress in reforming it.

At major computer-science publication venues, up to 17% of the peer reviews are now written by artificial intelligence. We need guidelines before things get out of hand.