Mars has always been a never-ending source of fascinating discoveries.
On this world, strange and surviving objects from ancient civilizations are being discovered at an increasing rate.
The Mars rover Curiosity found a fossilized skull of an ancient human ancestor who died many years ago.
This thing, which resembles a human face, may be a piece of an ancient statue or simply a rock, but I’m not sure what to make of it.
What could it possibly be?