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Astronomy Picture of the Day - All the Water on Planet Earth
APOD.NASA.gov ^ | 26 Sep, 2022 | Illustration Credit: Jack Cook, Adam Nieman, Woods Hole Oceanographic Institution; Data source: Igor

Posted on 09/26/2022 4:43:10 PM PDT by MtnClimber

Explanation: How much of planet Earth is made of water? Very little, actually. Although oceans of water cover about 70 percent of Earth's surface, these oceans are shallow compared to the Earth's radius. The featured illustration shows what would happen if all of the water on or near the surface of the Earth were bunched up into a ball. The radius of this ball would be only about 700 kilometers, less than half the radius of the Earth's Moon, but slightly larger than Saturn's moon Rhea which, like many moons in our outer Solar System, is mostly water ice. The next smallest ball depicts all of Earth's liquid fresh water, while the tiniest ball shows the volume of all of Earth's fresh-water lakes and rivers. How any of this water came to be on the Earth and whether any significant amount is trapped far beneath Earth's surface remain topics of research.


TOPICS: Astronomy; Astronomy Picture of the Day; Science
KEYWORDS: nasa
To be added or removed from the Astronomy Picture of the Day ping list please send me a request via "Private Reply" (Mail).

For more detail go to the link and click on the image for a high definition image. You can then move the magnifying glass cursor then click to zoom in and click again to zoom out. When zoomed in you can scan by moving the side bars on the bottom and right side of the image.

1 posted on 09/26/2022 4:43:10 PM PDT by MtnClimber
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To: MtnClimber

2 posted on 09/26/2022 4:43:27 PM PDT by MtnClimber (For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
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To: 21stCenturion; 21twelve; 4everontheRight; abb; AFB-XYZ; AFPhys; America_Right; AZ .44 MAG; ...
Pinging the APOD list.

🪐 🌟 🌌 šŸ”


3 posted on 09/26/2022 4:44:04 PM PDT by MtnClimber (For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
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To: MtnClimber

I’m guessing that the description on the image is wrong?

The large water sphere is ALL water (salt water, etc.) and the small sphere is FRESH water.


4 posted on 09/26/2022 4:50:56 PM PDT by 21twelve (Ever Vigilant. Never Fearful.)
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To: 21twelve

OOPs! I see now that there are THREE spheres.


5 posted on 09/26/2022 4:51:54 PM PDT by 21twelve (Ever Vigilant. Never Fearful.)
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To: 21twelve

“I’m guessing that the description on the image is wrong?”

It’s NASA. I’m thinking they are wrong about global warming also.


6 posted on 09/26/2022 4:53:53 PM PDT by Neverlift (When someone says "you just can't make this stuff up" odds are good, somebody did.)
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To: MtnClimber

ā€œā€¦and whether any significant amount is trapped far beneath Earth’s surface remain topics of research.ā€

ā€œAnd the fountains of the great deep openedā€¦ā€ There isn’t enough rain or ocean water to drown the earth…


7 posted on 09/26/2022 5:04:52 PM PDT by TalBlack (We have a Christian duty and a patriotic duty. God help us.)
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To: MtnClimber

Fascinating…..


8 posted on 09/26/2022 5:16:40 PM PDT by metmom (...fixing our eyes on Jesus, the Author and Perfecter of our faith….)
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To: MtnClimber

I live on an island in the middle of the pacific ocean.
You would have a rough time convincing me we have a water problem based on the total volume of the Earth.
We live on the surface of the Earth that is thin as a sheet of paper on the orb we occupy.
Bet the author thinks man can affect climate also.


9 posted on 09/26/2022 5:34:40 PM PDT by rellic
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To: MtnClimber

Looks a lot like the Globe in my 1968 College textbook for Physical Geography. You’d think after all these years, and all those NASA trips to Mars and Deeeeep $$$$$$$pace, they could have better graphics.
Ever hear of Primary Water? Lots of it beneath the ground, constantly replenishing just like oil and gas. The Scarcity-mongers don’t want anyone to know the PlaneTruth.


10 posted on 09/26/2022 5:36:17 PM PDT by Sioux-san
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To: 21twelve

That is what it says.


11 posted on 09/26/2022 5:52:50 PM PDT by Agatsu77
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To: MtnClimber

Looks like an illustration for environmentalism.

Did they account for thick layer of fresh water down in the crust? Probably not. It’s thick, and it’s not all that far down. The Russians hit it with their deep drilling experiment.


12 posted on 09/26/2022 6:58:13 PM PDT by familyop ("For they that sleep with dogs, shall rise with fleas" (John Webster, "The White Devil" 1612).)
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To: 21twelve

It was my understanding that all the water that was ever on the earth is still here. Some of it is in water vapor of course.


13 posted on 09/26/2022 7:59:29 PM PDT by oldtech
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To: MtnClimber

Interesting but not particularly useful. Humans and animals live on the top 1% of the landmass of the earth (or in that water). The other 99% isn’t particularly important to life on a day to day basis unless it’s time for volcanoes or earthquakes.


14 posted on 09/27/2022 5:34:29 AM PDT by jdsteel (PA voters: it’s Oz or Fetterman. Deal with it and vote accordingly.)
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