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Rover Finds Ancient Stream Bed On Mars
Full Circle
I love Watermelon
User ID: 124102
09-28-2012 11:39 PM

Posts: 23,146



Post: #1
Rover Finds Ancient Stream Bed On Mars
Advertisement
Mars on the left and Earth on the right.

[Image: B8D4_506618B7.jpg]

Scientists announced Thursday that water—fast-running and relatively deep—once coursed over the now bone-dry surface, a finding based on the presence of rounded pebbles and gravel near the rover's landing site in Gale Crater.

What's more, the team has concluded that the water was present for "thousands or millions of years,"
though the researchers said it would take far more research to get a clearer picture of the flow's longevity.

The discovery is the first proof that surface water once ran on Mars. Planetary scientists have hypothesized that the cut canyons and riverlike beds photographed by Mars satellites had been created by running water, but only now do researchers have on-the-ground confirmation—and the promise of learning much more about the nature and duration of the water flows.

"We've now identified pebbles and gravel at the landing site that clearly have been carried down by water, have been broken down and very much smoothed out," said William Dietrich, a geomorphologist working with the Curiosity imaging science team. "This is the beginning of our process of learning how much water was running and how long this area was wet."

The full article here:

http://news.nationalgeographic.com/news/...ed20120928

“No one can tell what goes on in between the person you were and the person you become.”
― Stephen King, The Stand
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Maid In Hell
lop guest
User ID: 115036
09-28-2012 11:44 PM

 



Post: #2
RE: Rover Finds Ancient Stream Bed On Mars
Interesting.....Popcorn
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Full Circle
I love Watermelon
User ID: 124102
09-28-2012 11:49 PM

Posts: 23,146



Post: #3
RE: Rover Finds Ancient Stream Bed On Mars
I thought so! chuckle

I tend to believe Mars was inhabited at one time.

“No one can tell what goes on in between the person you were and the person you become.”
― Stephen King, The Stand
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LoP Guest
lop guest
User ID: 122794
09-28-2012 11:54 PM

 



Post: #4
RE: Rover Finds Ancient Stream Bed On Mars
Full Circle  Wrote: (09-28-2012 11:49 PM)
I thought so! chuckle

I tend to believe Mars was inhabited at one time.

Imagine the gold nuggets still waiting to be picked!
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Full Circle
I love Watermelon
User ID: 124102
09-28-2012 11:56 PM

Posts: 23,146



Post: #5
RE: Rover Finds Ancient Stream Bed On Mars
LoP Guest  Wrote: (09-28-2012 11:54 PM)
Full Circle  Wrote: (09-28-2012 11:49 PM)
I thought so! chuckle

I tend to believe Mars was inhabited at one time.

Imagine the gold nuggets still waiting to be picked!

maybe it was laid to waste just like we're doing with this planet. Anon

“No one can tell what goes on in between the person you were and the person you become.”
― Stephen King, The Stand
Quote this message in a reply
sword777
lop guest
User ID: 122724
09-29-2012 12:02 AM

 



Post: #6
RE: Rover Finds Ancient Stream Bed On Mars
This is really exciting stuff. I can't wait for all of the great science that Curiosity performs, and the discoveries yet to be made!

Jhikpghf
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Full Circle
I love Watermelon
User ID: 124102
09-29-2012 12:06 AM

Posts: 23,146



Post: #7
RE: Rover Finds Ancient Stream Bed On Mars
Amended  Wrote: (09-29-2012 12:02 AM)
This is really exciting stuff. I can't wait for all of the great science that Curiosity performs, and the discoveries yet to be made!

Jhikpghf

Did you read the article?

This part is really interesting too.

The full river and drainage system by the Curiosity landing site is about 200 square miles (520 square kilometers), Dietrich said. It includes the elevated area beyond the crater wall, with fossil streams that feed into a deep, 11-mile (18-kilometer) channel slowly falling down that cliff, and then a 20-square-mile (50-square-kilometer) alluvial fan—the roughly triangular deposit left behind by the long-gone flow. The canyon channel was about 2,000 feet (610 meters) wide.

The most interesting gravel and pebbles—the size of M&Ms or hard candies—were found in conglomerate rocks at three sites close to the landing site. Curiosity's thrusters had dug out the first, Goulburn, at landing. The two others, called Link and Hottah, showed the same pavement-like formations



Blink

“No one can tell what goes on in between the person you were and the person you become.”
― Stephen King, The Stand
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feverpitch
Registered User
User ID: 61600
09-29-2012 12:10 AM

Posts: 4,419



Post: #8
RE: Rover Finds Ancient Stream Bed On Mars
Amended  Wrote: (09-29-2012 12:02 AM)
This is really exciting stuff. I can't wait for all of the great science that Curiosity performs, and the discoveries yet to be made!

Jhikpghf

You know what I can't wait for? I can't wait for the truth to come out that we never went to Mars and aren't there now, we never went to the moon and never will, and finally you sheeple will be exposed for the bunch of naive looney-toons that you really are.
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sword777
lop guest
User ID: 122724
09-29-2012 12:18 AM

 



Post: #9
RE: Rover Finds Ancient Stream Bed On Mars
Full Circle  Wrote: (09-29-2012 12:06 AM)
Amended  Wrote: (09-29-2012 12:02 AM)
This is really exciting stuff. I can't wait for all of the great science that Curiosity performs, and the discoveries yet to be made!

Jhikpghf

Did you read the article?

This part is really interesting too.

The full river and drainage system by the Curiosity landing site is about 200 square miles (520 square kilometers), Dietrich said. It includes the elevated area beyond the crater wall, with fossil streams that feed into a deep, 11-mile (18-kilometer) channel slowly falling down that cliff, and then a 20-square-mile (50-square-kilometer) alluvial fan—the roughly triangular deposit left behind by the long-gone flow. The canyon channel was about 2,000 feet (610 meters) wide.

The most interesting gravel and pebbles—the size of M&Ms or hard candies—were found in conglomerate rocks at three sites close to the landing site. Curiosity's thrusters had dug out the first, Goulburn, at landing. The two others, called Link and Hottah, showed the same pavement-like formations



Blink

I sure did read the article!

I tend to follow all the Mars exploration stuff as much as I can. It is intriguing, and it is important. Personally, I think that life exists on Mars right now... both plant and animal.
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entropy
Chiroptera Hominidae
User ID: 123929
09-29-2012 12:21 AM

Posts: 31,770



Post: #10
RE: Rover Finds Ancient Stream Bed On Mars
Cheer
Go Science

RIP Candle Karen
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Full Circle
I love Watermelon
User ID: 124102
09-29-2012 12:32 AM

Posts: 23,146



Post: #11
RE: Rover Finds Ancient Stream Bed On Mars
Amended  Wrote: (09-29-2012 12:18 AM)
I sure did read the article!

I tend to follow all the Mars exploration stuff as much as I can. It is intriguing, and it is important. Personally, I think that life exists on Mars right now... both plant and animal.

I think it exists right now too. So why do you think it's important? I understand it's a great opportunity to examine another planet.

eta: Thanks for the pin!

“No one can tell what goes on in between the person you were and the person you become.”
― Stephen King, The Stand
(This post was last modified: 09-29-2012 12:32 AM by Full Circle.) Quote this message in a reply
Nottingham 12
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09-29-2012 12:32 AM

Posts: 1,810



Post: #12
RE: Rover Finds Ancient Stream Bed On Mars
LoP Guest  Wrote: (09-28-2012 11:54 PM)
Full Circle  Wrote: (09-28-2012 11:49 PM)
I thought so! chuckle

I tend to believe Mars was inhabited at one time.

Imagine the gold nuggets still waiting to be picked!

I thought that was a gold nugget right next to the shark's tooth in the picture.

I can't wait until they start having some "rock hound" trips to Mars.

Natural disasters, major attack on the U.S., martial law, civil war, WWIII, foreign invasion/occupation, and then basic survival.
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RockTheCatbox
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09-29-2012 12:43 AM

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Post: #13
RE: Rover Finds Ancient Stream Bed On Mars
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Crazycanuck
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User ID: 34379
09-29-2012 01:39 AM

Posts: 1,639



Post: #14
RE: Rover Finds Ancient Stream Bed On Mars
Full Circle  Wrote: (09-28-2012 11:56 PM)
LoP Guest  Wrote: (09-28-2012 11:54 PM)
Full Circle  Wrote: (09-28-2012 11:49 PM)
I thought so! chuckle

I tend to believe Mars was inhabited at one time.

Imagine the gold nuggets still waiting to be picked!

maybe it was laid to waste just like we're doing with this planet. Anon

If you look at pictures of the whole surface of Mars, there's a big X on one side marking where something mighty big hit it (I have the picture on my computer but I can't seem to be able to copy it into this post). Anyway, the big X scar covers about a third of the surface of one side of the planet, something really big hit it in the past - it isn't inconceivable that such an impact would have devastated any life there, as the Chixilub (sp?) meteor wiped out the dinosaurs.....
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SecretGeek
Elvis @ 17 @ Louisiana Hayride
User ID: 61099
09-29-2012 01:43 AM

Posts: 24,704



Post: #15
RE: Rover Finds Ancient Stream Bed On Mars
Temperature is as high as 95 degrees at the equator and as cold as -225 degrees at the poles. I got dibs on 1,000,000 acres on the equator. Come get you some of this heat men. :)

Quote:Climate

Of all the planets in the Solar System, the seasons of Mars are the most Earth-like, due to the similar tilts of the two planets' rotational axes. The lengths of the Martian seasons are about twice those of Earth's, as Mars's greater distance from the Sun leads to the Martian year being about two Earth years long. Martian surface temperatures vary from lows of about −143 °C (−225 °F) (at the winter polar caps)[8] to highs of up to 35 °C (95 °F) (in equatorial summer).[9] The wide range in temperatures is due to the thin atmosphere which cannot store much solar heat, the low atmospheric pressure, and the low thermal inertia of Martian soil.[120] The planet is also 1.52 times as far from the Sun as Earth, resulting in just 43% of the amount of sunlight.[121]

If Mars had an Earth-like orbit, its seasons would be similar to Earth's because its axial tilt is similar to Earth's. The comparatively large eccentricity of the Martian orbit has a significant effect. Mars is near perihelion when it is summer in the southern hemisphere and winter in the north, and near aphelion when it is winter in the southern hemisphere and summer in the north. As a result, the seasons in the southern hemisphere are more extreme and the seasons in the northern are milder than would otherwise be the case. The summer temperatures in the south can reach up to 30 °C (54.0 °F) warmer than the equivalent summer temperatures in the north.[122]

Mars also has the largest dust storms in the Solar System. These can vary from a storm over a small area, to gigantic storms that cover the entire planet. They tend to occur when Mars is closest to the Sun, and have been shown to increase the global temperature.[123]

http://en.wikipedia.org/wiki/Mars
(This post was last modified: 09-29-2012 01:47 AM by SecretGeek.) Quote this message in a reply












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