Extremely Weird Rock Found on Mars Looks Like Nothing Else Around It

Once again, Mars has presented us with an example of something it seems to have in abundance: extremely peculiar and baffling rocks.

A striped "zebra rock" on Mars and a new Mars face

The science team thinks that igneous and/or metamorphic processes likely formed the rock. 

NASA's Curiosity Rover Discovers a Surprise in a Martian Rock

Among several recent findings, the rover has found rocks made of pure sulfur — a first on the Red Planet.