APOD Astronomy Overnight Thread- Dark Sands

Share

Dark Sand Cascades on Mars
Image Credit: HiRISE, MRO, LPL (U. Arizona), NASA

Explanation: They might look like trees on Mars, but they're not. Groups of dark brown streaks have been photographed by the Mars Reconnaissance Orbiter on melting pinkish sand dunes covered with light frost. The above image was taken in 2008 April near the North Pole of Mars. At that time, dark sand on the interior of Martian sand dunes became more and more visible as the spring Sun melted the lighter carbon dioxide ice.

******************************************************************************************************************************************************************************

Well, it's the Holiday Season, so if you're thinking of doing any buying thru Amazon, if you click thru our ad near the bottom of the page to do so, we will get a couple pennies for your patronage. Thank you in advance.

Share