Incazelo yesichazamazwi yegama elithi "intergalactic space" indawo enkulukazi emkhathini wemithala, lapho kukhona izinkanyezi ezimbalwa noma zingekho noma ezinye izinto zasemkhathini. Isho isifunda esingaphezu kwamaphethelo angaphandle emithala futhi equkethe kuphela igesi esakazwayo nothuli, izinto ezimnyama, nezinye izinhlobo zezinto ezingakhanyi. Umkhathi we-Intergalactic ubhekwa njengenye yezindawo ezinkulu nezingenalutho endaweni yonke, namabanga aphakathi kwemithala ngokuvamile alinganiswa ngezigidi noma izigidigidi zeminyaka yokukhanya.