How a moon slows the decay of Pluto's atmosphere
Monday, January 9, 2017 - 16:31
in Astronomy & Space
Pluto's relationship with its moon Charon is one of the more unusual interactions in the solar system due to Charon's size and proximity. It's more than half of Pluto's diameter and orbits only 12,000 or so miles away. To put that into perspective, picture our moon three times closer to Earth, and as large as Mars.