Eric Walker added Welcome to the Center of the Universe to Deep Space Network (DSN)
Eric Walker added DSS 43 to Canberra Deep Space Communication Complex (CDSCC), and added Canberra Deep Space Communication Complex (CDSCC) to Deep Space Network (DSN) and Canberra
Eric Walker added a number of topics and r/geology - The Dee Wright Observatory in Sisters, Oregon. It sits in the middle of a lava flow and made of the rocks it surrounds. to Telescopes, observatories and telescope networks, and added Telescopes, observatories and telescope networks to Astronomy, astrophysics and cosmology and Measuring instruments and measurement techniques