Peter Paul Rubens [Public domain], via Wikimedia Commons
From The Planet Mars by E.M. Antoniadi
"The Greeks called it Ares (Mars), 4 name of the God of War, and apparently it was also known sometimes as Hercules.* Moreover, it was regarded as fiery 8 and impetuous. 1 Proclus Diadochus called it 'celestial fire', and added that it symbolised fire."