s*****t
发帖数: 1994 | 1 Spring Dust Storms at the North Pole of Mars
Credit: MSSS, JPL, NASA
Explanation: Spring reached the north pole of Mars in May, and brought with it the usual
dust storms. As the north polar cap begins to thaw, a temperature difference occurs between
the cold frost region and recently thawed surface, resulting in swirling winds between the
adjacent regions. In the above image mosaic from the Mars Global Surveyor spacecraft
currently orbiting Mars, the white material is froze |
|
