Since its launch in 2013, Gaia has been dedicated to creating an accurate three-dimensional map of the Milky Way. Using two high-precision optical telescopes, the spacecraft carefully records the ...
Charon is the largest moon of the dwarf planet Pluto, but calling it a moon ... Grundy et al, 'The Formation of Charon's Red Poles From Seasonally Cold-Trapped Volatiles', Nature, 539, 65 ...