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ESA - Cydonia - the face on Mars
What is Cydonia? - Universe Today
Cydonia Mensae (March 12, 2015) • Planetary Sciences and Remote
DLR - Mars Express - The Cydonia Region – The Face On Mars
BBC NEWS, Science/Nature
Cydonia - the Face on Mars movie - SpaceRef
Photos: Zooming in on the 'Face on Mars
ESA - Cydonia - the face on Mars
10.2: Mars - Physics LibreTexts
Face on Mars