While accepting the "face" as a subject for scientific study, astronomer Carl Sagan criticized much of the speculation concerning it in the chapter "The Man in the Moon and the Face on Mars" in his book The Demon-Haunted World.
Cando se aceptou a "cara" coma suxeito para o estudo científico, o astrónomo Carl Sagan criticou moito a especulación que rodeaba a este estudo no capítulo "The Man in the Moon and the Face on Mars" do seu libro The Demon-Haunted World.