RFK junior wants to ban an ingredient in vaccines. Is he right?
Studies show that thimerosal does more good than harm

ON June 26th a vaccine advisory panel installed by Robert F. Kennedy junior, America’s health secretary, recommended that thimerosal (also spelled thiomersal), an ingredient used in some multi-dose vaccine vials, should be removed from all flu jabs.
Explore more

An interstellar object is cruising through the solar system
Its appearance puts a new branch of astronomy to the test

AI is helping to design proteins from scratch
They could treat diseases, test drugs and boost crop yields

A new project aims to synthesise a human chromosome
The tools developed along the way could revolutionise medicine
How sea slugs give themselves superpowers
Their slimy shenanigans might have applications for humans, too
Is being bilingual good for your brain?
Perhaps. Learning languages offers other, more concrete benefits
Distrust in public-health institutions is not just an American problem
Across the rich world politics is driving scepticism