Face on Mars

The "Face on Mars" refers to a rock formation located in the Cydonia region of Mars that resembles a human face when viewed from certain angles, particularly in images taken by NASA's Viking 1 orbiter in 1976. This intriguing shape sparked interest and speculation about whether it was an artificial monument built by extraterrestrial life. However, subsequent high-resolution images from Mars Global Surveyor and other missions have shown that the "face" is simply a natural geological formation, shaped by erosion and lighting effects, highlighting how our perceptions can be influenced by context and expectation.