Astronomers using the James Webb Space Telescope have found an object in the early universe that does not fit easily into any familiar category. It is about the size of our entire solar system and resembles an enormous star, but it produces far more energy than a star should be able to generate.

Could a quick, painless tear sample someday help doctors monitor changes in the brain before major symptoms appear?

In this article, scientists Stewart Edie and Torben Rick take you on a journey through the United States as nature sees it, beyond state lines and political borders.