Ahead of the 250th anniversary of the founding of the United States, we asked scientists, scholars, researchers, and doctors to tell us about the discoveries and developments that define this moment in American science and health.

It’s a regrettable reality that there is never enough time to cover all the interesting scientific stories we come across. So every month, we highlight a handful of the best stories that nearly slipped through the cracks.

The latest health and science news. Updates on medicine, healthy living, nutrition, drugs, diet, and advances in science and technology. Subscribe to the Health & Science podcast.