Eric Walker added The Galaxy That Grew Up Too Fast - The New York Times to a number of topics

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

Eric Walker added The Galaxy That Grew Up Too Fast - The New York Times to Sloan Digital Sky Survey, and added Sloan Digital Sky Survey to New Mexico and Telescopes, observatories and telescope networks

Eric Walker added a number of topics and a number of links to New Mexico, and added New Mexico to US states and territories