Mars May Be More Bluish Gray Than Red
The Red Planet?! Maybe not. The Curiosity Rover drilled a shallow hole at a site called Telegraph Peak, in a region called Pahrump Hills, to uncover grayish blue matter. This discovery has suggested that that the red top layer of the planet is made up of completely different material than what is beneath the dusty surface.
from NASA Jet Propulsion Laboratory
Key Facts In This Video
NASA drilled on an area of Mars known as the "John Klein" site. (0:12)
The color inside the rock is different than the famous "red" color on Mars' surface. (1:00)