Charon is made mostly of water ice. When the New Horizons spacecraft flew past Pluto and Charon in 2015, it imaged only one side of Charon. It found that Charon's north polar region, called Mordor ...
Scientists have discovered a new type of planetary collision called “kiss-and-capture,” where Pluto and proto-Charon briefly connected and spun together before separating into their current orbital ...
While Charon is currently listed as a satellite or moon by the International Astronomical Union (IAU), consideration is being given to it perhaps being classified as a dwarf planet in its own right, ...