Eric Walker added The Galaxy That Grew Up Too Fast - The New York Times and At the Edge of Time, a Litter of Galactic Puppies - The New York Times to Keck II telescope, and added Keck II telescope to Keck Observatory

Eric Walker added Keck Telescope and Keck II telescope to Keck Observatory, and added Keck Observatory to Observatories and Hawaii

Eric Walker added a number of topics to Observatories, and added Observatories to Telescopes, observatories and telescope networks

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

Eric Walker added Milky Way's Black Hole Just Flared, Growing 75 Times as Bright for a Few Hours - Universe Today to Keck Telescope, and added Keck Telescope to Keck Observatory