Chris McKitterick (mckitterick) wrote,
Chris McKitterick

Astro-image of the Day: White Rock" on Mars

Here's a fascinating feature that the Mars Odyssey Mission has discovered on Mars:

Click the image to see the story.

It's called, "White Rock." At first, scientists hypothesized that this was a big salt deposit from an ancient Martian ocean, but they soon discovered that wasn't it, either. Right now they have no good answer, but some people hypothesize that it's olivine, one of the most-abundant minerals in the Solar System. It's a pretty crystal when whole, but reacts with CO2 and crushes easily, leaving - basically - clay-like mud afterward.

Here's a cool 3D view of White Rock:

Click the image to see the story.

Tags: astronomy

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