US, German scientists win Nobel medicine prize for work on light and brain

- Nobel: 6 events in the last 90 days
- Previous: earlier the same day · Belgian physicist wins Nobel for turning Antarctic ice into a telescope
What happened
American Karl Deisseroth and Germans Peter Hegemann and Georg Nagel won the 2026 Nobel Prize in Physiology or Medicine on Monday for developing optogenetics, a technique that uses light to control individual nerve cells in the brain.
Summary assembled by rule from the sources below