The Planets is a 2019 BBC/PBS/Tencent/Open University television documentary series about the Solar System presented by Professor Brian Cox in the UK version and Zachary Quinto in the US version.

First broadcast on BBC Two beginning Tuesday 28 May 2019, the five-episode series looks at each planet in detail, examining scientific theories and hypotheses about the formation and evolution of the Solar System gained by uncrewed missions to the planets. Originally released in the UK, it was changed to cater more to the American audience watching on PBS's series Nova.

Cox presents segments to camera from various locations around the world alongside extensive computer-generated imagery and footage from space missions. The series was created as a partnership between BBC Studios and the Open University.