Your daily guide to understanding what’s happening — and why it matters. Hosted by Sam Sifton, for readers in the U.S. and Canada. Your daily guide to understanding what’s happening — and why it ...

Oct. 29, 2025 — NASA’s James Webb Space Telescope has captured the first detailed look at a carbon-rich disk surrounding the exoplanet CT Cha b, located about 625 light-years from Earth. The ...