News Astronomy

Signs of a hidden Planet Nine in the solar system may not hold up

A remote planet isn’t ruled out, but evidence for one may be an illusion

Planet Nine illustration

Planet Nine (illustrated) is a hypothetical giant planet hiding at the solar system’s edge — but new work suggests the evidence for it is a mirage.

ESA/Hubble, M. Kornmesser

By Lisa Grossman

- More than 2 years ago

Read another version of this article at Science News Explores

Planet Nine might be a mirage.