No question about the big winner in yesterday’s English elections: Nigel Farage’s Reform UK won its first mayoral polls, took control of local councils—and pipped Labour to the post in a parliamentary by-election. Labour had a disappointing day; the Conservatives, a dreadful one. Britain’s political landscape, long dominated by those two parties, has become bewilderingly fragmented.

In our Science section, we’ve been writing about a disturbing trend: a rise in bowel cancer among people under 50. Exposure to a common gut bacteria in early childhood could be the culprit.