In 1975, NASA's Viking 1 spacecraft entered orbit around Mars, carrying a mission to unlock the secrets of the Red Planet. Soon, it released twin landers that drifted toward the Martian surface ...

A strange spoon-shaped rock was snapped by Mars' Curiosity rover in 2015, while a freaky face-like feature was photographed in 1976 by the American Viking 1 orbiter and lander. Do you have a tip ...