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

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

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