There actually have been airship proposals for Mars, but as you'd expect because of the tiny atmosphere they're... different: https://www.nasa.gov/directorates/

There actually have been airship proposals for Mars, but as you'd expect because of the tiny atmosphere they're... different: https://www.nasa.gov/directorates/spacetech/niac/2017_Phase_I_Phase_II/Evacuated_Airship_for_Mars_Missions https://www.nasa.gov/directorates/spacetech/niac/2017_Phase_...