NASA spacecraft spies sand dunes shifting on Mars


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PASADENA, Calif. (AP) ? Sand is blowing in the wind on the surface of Mars ? at least in some places.

NASA on Thursday released images documenting dozens of spots on the red planet where sand dunes shifted several yards. Scientists had suspected this was occurring but thought it was limited to a few locations.

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The latest images were taken by the Mars Reconnaissance Orbiter, which has been photographing the Martian surface since 2005.

Dust is constantly being blown around on Mars, but sand grains are tougher to move. In a study published online in the journal Geology, scientists surmised that the planet has stronger winds than expected in order to move the sand.

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so wait let me get this straight.

On Mars there is wind and sand. I hope everybody is keeping up.

Now you put the wind and sand together and the sand dunes move? Unbelievable I would never have thought of that.

Sarcasm over awesome pictures but not really surprising is it?

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here we go with the secret Mars colony again...Hum's Folly, i'm sure it's called.

and yeah i had the same initial reaction as steve's, i mean we know there's sand and wind on Mars so what's the big deal? but then of course it's a big deal, it's sand and wind on another world, and we need to build public enthusiasm about it. this is what NASA's trying to do, as they're trying to make Mars more relatable to people.

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PASADENA, Calif. (AP) ? Sand is blowing in the wind on the surface of Mars ? at least in some places.

NASA on Thursday released images documenting dozens of spots on the red planet where sand dunes shifted several yards. Scientists had suspected this was occurring but thought it was limited to a few locations.

4fdc841f-d69d-474d-b073-a647e1ee2d3d.jpeg

The latest images were taken by the Mars Reconnaissance Orbiter, which has been photographing the Martian surface since 2005.

Dust is constantly being blown around on Mars, but sand grains are tougher to move. In a study published online in the journal Geology, scientists surmised that the planet has stronger winds than expected in order to move the sand.

source

So let me get this right. We can't find one guy in the middle of the desert, but we can see sand dunes moving "A few yards" some hundred million miles away? fantastic :-p /s

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So let me get this right. We can't find one guy in the middle of the desert, but we can see sand dunes moving "A few yards" some hundred million miles away? fantastic :-p /s

A picture showing sand dunes moving a few yards means that it will still be there tomorrow, and next week, and next year, etc...

A guy in the middle of the desert won't be in the same spot 30 seconds from now...

Nice try at the failed logic though...

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A picture showing sand dunes moving a few yards means that it will still be there tomorrow, and next week, and next year, etc...

A guy in the middle of the desert won't be in the same spot 30 seconds from now...

Nice try at the failed logic though...

Nice try at getting that /s tag at the end indicating sarcasm... BLNT

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understand your frustration Evan but for the record Mars isn't a hundred million miles away right now :rofl:

Exaggeration sir....exaggeration I'm sorry for not stating that it was 249,169,848.087 miles away

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heh heh spice melange...that's just another unobtainium. but Mars does kind of look like Arrakis...desert planet...wheels within wheels...where's Floating Fatman when you need him?

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Fish Speakers! you also think i'm a girl! no, i'm not, i'm a Duncan Idaho ghola! we will prove very useful when the colonization of Dune, i mean Mars, commences.

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Fish Speakers! you also think i'm a girl! no, i'm not, i'm a Duncan Idaho ghola! we will prove very useful when the colonization of Dune, i mean Mars, commences.

Let's date anyway -- on Mars. :laugh:

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heh heh the abomination...i love that word! cralias, back to sietch tabr with you, you've spent too much time on the bled!

Hum - if you can get us to Mars I WILL DATE YOU!

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