September 19, 2025

Dr. Mary-Claire King was the first to link a gene to hereditary cancer risk with the identification of BRCA1 in the 1990s. She was just getting started. Plus, sooner or later, a sizable asteroid could impact a populated area on Earth. How are we preparing? And, the merlin, sandhill crane, and pileated woodpecker were once rare in North America. Environmental conservation fueled their resurgence.