Eric Walker added Dwarf planet Ceres is 'ocean world' with salty water deep underground - Reuters to Ceres (dwarf planet)

Eric Walker added Ceres: An ocean world in the asteroid belt | Astronomy.com to Ceres (dwarf planet)

Eric Walker added Planet Ceres is an 'ocean world' with sea water beneath surface, mission finds | Science | The Guardian to 2007 Dawn (spacecraft), Ceres (dwarf planet) and Hydrohalite

Eric Walker added Ceres (dwarf planet) - Wikipedia to Ceres (dwarf planet)

Eric Walker added a number of links to Ceres (dwarf planet), and added Ceres (dwarf planet) to Solar system

Eric Walker added a number of topics and a number of links to Solar system, and added Solar system to Milky Way and Star systems