Animation of the Pluto-Charon system Pluto and its moon Charon are tidal locked. This means that the two bodies always face each other with the same side. As a result, Pluto "sees" only one side of Charon, and vice versa, Charon always shows Pluto the same side. Unlike most planetary systems, the barycenter of the Pluto-Charon system is located approximately 960 km from the surface of Pluto. This is due to the fact that Charon is relatively large compared to Pluto, its mass is about 12% of Pluto

44K views · 1.9K reactions | The New Horizons #PlutoFlyby is giving us amazing views of Charon, Pluto’s largest moon, but let’s not forget about the 4 other moons in Pluto’s system. Watch today’s ‘Pluto in a Minute’ to learn more: https://youtu.be/yOmiqFo1HHQ | NASA - National Aeronautics and Space Administration | Facebook

The Pluto-Charon system is unique due to its mutual tidal locking, where both bodies always face the same side towards each other. This is a phenomenon not seen in most planetary systems like Earth and the Moon, where only the Moon is tidally locked to Earth. | Mathandscience.com