Daily briefing: Galileo’s notes discovered in the margins of an ancient book

Nature, Published online: 03 March 2026; doi:10.1038/d41586-026-00739-x

Historians have discovered some recognizable jottings in a 400-year-old copy of Ptolemy’s The Almagest. Plus, tectonic plates might’ve started moving earlier than we thought and how fluorescent-protein labels can be used as quantum sensors.