Proceedings of the National Academy of Sciences, Volume 123, Issue 42, October 2026. SignificanceMore than one billion people live in urban informal settlements, and this...

Proceedings of the National Academy of Sciences, Volume 123, Issue 42, October 2026. SignificanceCognitive flexibility, the ability to update behavior when circumstances change, depends on...

Print article Share Artificial intelligence (AI) is developing at a rapid pace and is increasingly being used by scientists to better understand climate change. AI...

Abstract The carbon dioxide (CO2)/argon (Ar) ratio is a useful tracer of atmospheric circulation on Mars, but it remains observationally poorly constrained in the middle...

Proceedings of the National Academy of Sciences, Volume 123, Issue 42, October 2026. SignificanceCapturing enzymes under native conditions is a ‘holy grail’ of structural biology,...

Proceedings of the National Academy of Sciences, Volume 123, Issue 42, October 2026. SignificanceCells need cytidine triphosphate (CTP) to build RNA, yet how its sole...

Abstract Rapid infiltration influences rainfall partitioning, subsurface water movement, and freshwater availability, yet its large‐scale spatial organization remains poorly constrained by limited observations and the...

Protesters at World Bank and IMF meetings, along with new research, are railing against a globalized system that fails to produce enough food and has...

What does going on a date have to do with fossil fuels? Everything, according to the petroleum industry. One advertisement from the pipeline company Energy...

Freeing yourself from oil is a downright impossible task in modern America. You could put solar panels on your roof, bring tote bags to the...

Proceedings of the National Academy of Sciences, Volume 123, Issue 42, October 2026. SignificanceSocial play is considered critical for developing social, cognitive, and physical skills...

Proceedings of the National Academy of Sciences, Volume 123, Issue 42, October 2026. SignificanceThis study provides ancient DNA analysis of Québec’s French-Canadian founder population from...

Grant from Advanced Research Projects Agency for Health will expand testing of supplements and approved drugs to prevent dementia in people at risk

After decades of losses, mangrove trees are gaining ground on coastlines around the world, often in places they have never grown before. But evidence suggests...

Proceedings of the National Academy of Sciences, Volume 123, Issue 42, October 2026. SignificanceThe epithelial–mesenchymal transition (EMT) enables cells to migrate during development and is...

Proceedings of the National Academy of Sciences, Volume 123, Issue 42, October 2026. SignificanceWe delineate how chronic inflammation induced by smoking drives evolution of different...

A version of this article was published in Euronews and ClimaticaAcross Brittany, tractors can be seen trundling onto beaches to remove truckloads of foul-smelling algae...

Proceedings of the National Academy of Sciences, Volume 123, Issue 42, October 2026. This article argues that human cognition is more than the performance of...

Proceedings of the National Academy of Sciences, Volume 123, Issue 42, October 2026.

Brian Stone and Rebecca Keiser are leaving as unofficial head and chief of staff

With high-speed cameras and a ‘pitch cannon,’ researchers are refining the automated ball-strike system about to call its first World Series

Frequent strong El Niño events, including the extremes of 2015/16 and 2023/24, have exerted profound global climatic impacts. Unlike canonical Eastern Pacific (EP) and Central...

WASHINGTON (October 21, 2026) - A coalition of civil society organizations has released a set of Principles for Good Governance in Corporate Standards, calling for...

Under the most optimistic scenario, global warming would rise 1.7 to 1.8 degrees above pre-industrial levels, despite renewables expanding considerably over the last decade.By Lauren...