This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. A ‘zombie planet’ called Fomalhaut b is ...

The unbalanced orbit of a so-called "zombie planet" in a dusty star system has astronomers struggling to explain the exoplanet's behavior. New observations of the planet Fomalhaut b by the Hubble ...