Planet Nine’s existence is not the first time astronomers have predicted a planet they couldn’t see. Clyde Tombaugh was looking for Planet X when he accidentally found Pluto. After Voyager 2 ...

The Jackson Wild Media Awards, often called the Oscars® of nature films, announced the finalists for 2025. PBS programs ...

Whether it’s Roswell or Area 51, people have been convinced there have been beings from other planets visiting Earth. PBS’ “Nova” series examines the phenomenon of UFOs.