As an astrophysicist, my world revolves around the wonders of space and the mysteries of the universe. This means I can be a tough critic of science fiction books and films that explore these topics.

In the film, middle school teacher Ryland Grace (Ryan Gosling) is recruited to help save Earth because of his history as a cell biologist with some iconoclastic ideas about life in the universe.

The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper’s authors have dubbed ...