This mantle observed by NASA Mars Reconnaissance Orbiter is thought to be deposited as snow during periods when the angle of the tilt of Mars rotational axis-called obliquity-is much higher, which last happened around 10 million years ago.
This mantle observed by NASA Mars Reconnaissance Orbiter is thought to be deposited as snow during periods when the angle of the tilt of Mars rotational axis-called obliquity-is much higher, which last happened around 10 million years ago.