Nature (@nature.com.web.brid.gy)

The 1975 discovery of long-lost letters between Albert Einstein and the astronomer Willem de Sitter Nature, Published online: 07 October 2025; doi:10.1038/d41586-025-02978-w Lively scientific debates found in correspondence from 1916 to 1918, and Saint Patrick’s snake-banishment skills are called into question in this week’s pick from the Nature archive. https://www.nature.com/articles/d41586-025-02978-w