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Recent posts

From heckling to violence. A growing acceptance of both. RobVG September 17, 2025 4:46 pm (CurrentEvents)

Help me out with Charlie Kirk RobVG September 16, 2025 1:07 pm (CurrentEvents)

You don't need a weatherman to know which way the wind blows. ER September 10, 2025 4:56 pm (Space/Science)

All we are saying, is give war a chance BuckGalaxy September 5, 2025 1:30 pm (CurrentEvents)

"Cancel culture" podrock September 3, 2025 8:32 am (CurrentEvents)

He should know better. ER September 1, 2025 8:20 pm (Space/Science)

Clare Torry RobVG August 26, 2025 7:42 pm (Off-Topic)

Lateral Thinking BuckGalaxy August 23, 2025 11:57 am (Off-Topic)

SNW: The Finest Frontier BuckGalaxy August 23, 2025 12:20 am (Science Fiction)

There's more than Floyd RobVG August 20, 2025 12:24 am (Off-Topic)

More evidence of brine seeps on Mars? August 4, 2011 1:14 pm podrock

Nasa Slide show

story from JPL

  • Where are the salt deposits then? Those streaks look dark. Shouldn't salt deposits left behind look bright? And, excuse my ignorance, but shouldn't ... by Jeff-Wash 2011-08-04 15:37:39
    • Brines and salt deposits are often dark due to dissolved impurities--or algae and bacterial growth! by carter j burke 2011-08-05 12:21:28
      • Boundry Layer Bedforms by podrock 2011-08-04 18:46:57
        • OK I'm sold. Fascinating idea - it never occurred to me to check for any more effects of wind and air ... by VelociraptorBlade 2011-08-04 21:51:45
          • I've spent a lot of time in the desert; and I can tell you, wind is weird. And it paints ... by podrock 2011-08-04 22:08:39
            • I've spent a lot of time in an area that's the Atacama for one half of the year and Bangladesh ... by VelociraptorBlade 2011-08-05 00:38:16
      • compelling animation. by Robert 2011-08-04 14:25:59

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