Astro Bob: Aurora alert Sept. 18-19 and a visit from fleet-footed Mercury - Duluth News Tribune
Astro Bob: Venus shares a croissant; aurora poised to strike - Duluth News Tribune
Astro Bob: Auroras bloom like flowers โ a look back and tips for what's ahead - Duluth News Tribune
Astro Bob: Are you ready for more aurora? - Duluth News Tribune
Astro Bob: Aurora alert Sunday night Aug. 21-22 - Duluth News Tribune
Astro Bob's Astronomy for Everyone
Your Evening Update: The latest stories from Tuesday, September 19, 2023 - Duluth News Tribune
Astro Bob's Astronomy for Everyone
Your Evening Update: The latest stories from Tuesday, September 19, 2023 - Duluth News Tribune
Astro Bob: Aurora alert July 21-23, plus planet happenings - Duluth News Tribune
Astro Bob: Aurora alert Monday night Oct. 3 - Duluth News Tribune