Sasha Maslov for The New York Times

Russia’s invasion has driven Ukraine to become the Silicon Valley for autonomous weaponry, often made by local companies adapting consumer goods. The availability of off-the-shelf devices, software, powerful algorithms and specialized artificial intelligence microchips has pushed a deadly innovation race into uncharted territory, fueling a potential new era of killer robots.

Lives lived: June Leaf, a painter and sculptor whose explorations of the female form paved the way for later generations of feminist artists, died at 94.