Major stock indexes fell Wednesday, with the S&P 500 and Dow Jones Industrial Average on pace for a fourth consecutive decline, as AI bubble concerns resumed and investors digested tepid labor data.

Astronomers detect "wobbling high-latitude jet" in comet 3I/ATLAS, according to a preprint paper. A new mutation of flu strain A (H3N2) is driving an increase in influenza cases and hospitalizations. Bears in central Italy are evolving to become smaller and less aggressive after interacting with humans, study finds.