▽Astronomy Picture of the Day ●11/23 11:32 2024 November 22The Medusa NebulaImage Credit & Copyright: Bruno Rota SargiExplanation: Braided and serpentine filaments of glowing gassuggest this nebula's popular name, The Medusa Nebula.Also known as Abell 21, this Medusa is an old planetary nebulasome 1,500 light-years away in the constellation Gemini.Like its mythological namesake, the nebula is associated with a dramatic transformatio
