Categories SAY IT'S YOUR BIRTHDAY Midnight Oil Released “Blue Sky Mining” 30 Years Ago Today Post author By MAGNET Staff Post date February 9, 2020 30 years ago today, Midnight Oil released Blue Sky Mining. These will not be forgotten years. ← Yeasayer Released “Odd Blood” 10 Years Ago Today → The Mothers Of Invention Released “Burnt Weeny Sandwich” 50 Years Ago Today