Stargazer July 20 - 26, 2020: A Grapefruit-Sized Black Hole? By Dave Lawrence • Jul 20, 2020 ShareTweetEmail Credit courtesy Shawn Laatsch Listen Listening... / 2:34 Stargazer July 20 - 26, 2020 This week on Stargazer, HPR’s Dave Lawrence and Christopher Phillips discuss the possibility of a grapefruit-sized black hole lurking outside our solar system. Tags: StargazerDave Lawrencechristopher phillipsgrapefruit sized black holeShareTweetEmailView the discussion thread. Related Content Stargazer July 13 - 19, 2020: A Comet Heads By By Dave Lawrence • Jul 13, 2020 courtesy Shawn Laatsch This week on Stargazer, HPR’s Dave Lawrence and Christopher Phillips discuss the last chance to see a comet that’s headed by…