Where Did Earth's Water Come From?

Earth didn't have water when it formed, but it does now! How did it get wet?

CREDITS
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Created by Henry Reich
Illustration and Animation: Ever Salazar
Production and Writing Team: Alex Reich, Peter Reich, Emily Elert

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REFERENCES
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Campbell, I. H., & O'Neill, H. S. C. (2012). Evidence against a chondritic Earth.Nature, 483(7391), 553-558.

Drake, M. J. (2005). Origin of water in the terrestrial planets. Meteoritics & Planetary Science, 40(4), 519-527.

Greenwood, J. P., Itoh, S., Sakamoto, N., Warren, P., Taylor, L., & Yurimoto, H. (2011). Hydrogen isotope ratios in lunar rocks indicate delivery of cometary water to the Moon. Nature Geoscience, 4(2), 79-82.

Hauri, E. H. (2013). Planetary science: Traces of ancient lunar water. Nature Geoscience, 6(3), 159-160.

Marty, B. (2012). The origins and concentrations of water, carbon, nitrogen and noble gases on Earth. Earth and Planetary Science Letters, 313, 56-66.

Pepin, R. O. (2006). Atmospheres on the terrestrial planets: Clues to origin and evolution. Earth and Planetary Science Letters, 252(1), 1-14.

Robert, F. (2001). The origin of water on Earth. Science, 293(5532), 1056-1058.

Robert, F. (2011). Planetary science: A distinct source for lunar water?. Nature Geoscience, 4(2), 74-75.

Saal, A. E., Hauri, E. H., Van Orman, J. A., & Rutherford, M. J. (2013). Hydrogen Isotopes in Lunar Volcanic Glasses and Melt Inclusions Reveal a Carbonaceous Chondrite Heritage. Science, 340(6138), 1317-1320.

[GateMessenger]

What percentage of water do these Carbonaceous Chondrite contain on average? How many of those asteroids would have to strike the Earth in order to produce the amount of water found on Earth and deep below the surface? Now for the final question. Why did these asteroids strike the Earth more than the other planets seeing Earth is the only one with lots of water?

[Commonvoice]

I am a Earth Science major: I was taught that it was due to a process called sublimation- the hydrogen and oxygen slowly emerging to the surface over billions of years. Water from outer space was only a tiny contributor

[MarvLthe]

Mercury, venus : too close to sun to sustain liquid water.
Mars: Had water once. lost all of it due to lack of magnetosphere. solar radiation bombarded the surface causing water to vaporized. low gravity could not hold back the vapors and eventually lost in space.
Jupitar, saturn: Made of gas. without solid surface water cannot sustain.
neptune: too cold to sustain liquid water
uranus: water wiped off due to use of toilet paper.

[mobyoboi.]

*the history of the entire world, i guess*

[EnigmaHood]

Doesn't explain why Earth has so much water but other planets do not.

[iamstuckwiththisnameforalo]

Europa: *Exists*

Titan: *Exists*

Earth: Shoot, we’re not alone!

[thesunset]

"Build a Planet! Water not included" 😂🤣😄 I laughed really hard.

[TheRealGuywithoutaMustache]

"Thus the water that turned our planet into a blue marble, quite literally, came out of the blue"

The perfect way to end this video for sure.

[UPlayNetwork]

I wonder how many meteoroids carrying water had to hit earth to form the oceans 

[waqar]

So why did all these watery meteoroids decide to crash on earth and not on mars or venus

[boo]

*Where did earths water come from?*


*JESUS IS ALWAYS THE ANSWER.*

[sourlemon]

WEATHER UPDATE
Its raining rocks from outer space.
WEATHER UPDATE
Those rocks might have had water inside them and now there is *hot steam* in the sky.
WEATHER UPDATE
Cooler tempratures today and the floor is no longer lava.
WEATHER UPDATE
...It's raining...
*_SEVERE FLOODING ALERT_*
The entire world is now an ocean...

[Rathial]

Cool, makes me wonder how many meteorites it took to get so much water, because Earth obviously has an amazing amount of water. 

[jacksonyan]

I imagine it would take a lot of meteoroids to bring this much water earth. Now I am curious how much of the rocks actually come from meteoroids too.

[buttonboy]

God did it... Simple.

Ha, just kidding... it was the Flying Spaghetti Monster - His spaghetti straws were too hard and tough, so He invented water to soften them up and so it was that he became the spangly, dangly, delicious deity He is today.

Duh.

[wjestick]

The universe is pretty big, but you have to admit, the more we learn about the earth, and all the things that make it just right for life, the longer the odds get.

If you look into some of the things we know about in the cosmos (like black holes, jets of gamma rays, and a general lack of free water there is less reason to expect a whole bunch of planets like ours just waiting to be found.

If shows like Start Trek reflected this can you imagine how boring the episodes would be. A ship of humans visiting dead worlds to take dust samples,

The End.

[colinfrederick]

The more I learn, the more I think Earth is just the equivalent of an Alien species’ zoo or fish bowl and that they terraformed the planet to make new life

[Titanicpassenger]

Atheists: The sun created water
Christians: God creates water
Muslims: Allah created water

WHAT AM I SUPPOSE TO BELIEVE???

[AngionMethod]

but they should've crashed on the other planets too so why is there no water or why do they only crash on the earth?

[TheSkimzRealm]

Why other planets of our solar system don't have water on them:
1) Planets like Mercury and Venus that are too close to the Sun is unable to sustain water in liquid form as they would evaporate
2) The gas giants (Jupiter, Saturn, etc) do not have a solid surface and therefore water cannot stay liquid form. Even if it could they would all freeze up as the planets are too far away from the sun.
3) Mars's gravitational pull isn't strong enough.
4) Earth happened to be the right size and the right distance away from the Sun. There are countless other solar systems out there, and our planet on our solar system got lucky. Even if such a perfect planet being created was a one in a trillion chance, since the universe is extremely large such a planet is bound to be made somewhere sometime.