Origin Of Water

On Earth, water is the most precious. We are using it in our everyday lives.  But did any of you thought where water has been originated from? or When did the water come to our planet? or Did water came from space? 

If you've thought like that, you've come to the right blog!. Today we are going to see How did Water originate on Earth?

At first, scientists thought that the Water was present from the Early/ Baby Earth. But if the water was present during the volcanic eruptions, It must have been evaporated. In the modern period, Scientists are suggesting two ways that we might have got water: 

• By comets and asteroids (Rocky material)
• From the vast cloud of cloud and dust - Solar Nebula, formed along our sun.
  

Earth's water is similar to the ones that are present in the asteroids. That's the one reason scientists are believing that an asteroid bombardment in the Early days of the solar system could have resulted in the origin of water on our planet.

The ratio of deuterium found on the asteroid are equal to the ratio found on our Earth's waters.

The surface of the very young (baby) Earth was initially an ocean of magma.  Hydrogen and noble gases from the solar nebula were drawn to the planetary embryo forming the first atmosphere. Nebular hydrogen, which contains less deuterium and is lighter than asteroidal hydrogen, dissolved into the molten iron of the magma ocean.

Hydrogen was then drawn toward the center of the Earth - a process called "Isotopic fractionation". Impacts from smaller planetary embryos and other objects continued to add additional water and mass until Earth reached its final size.

For every 100 molecules of Earth's water, there are one or two coming from the Solar Nebula. Another group of scientists is saying that water had been originated from primitive comets and meteorites that are formed during the formation of the sun.

Comet 46p/Wirtanen's deuterium ratio is also similar to the hydrogen content present on Earth. And this comet is also called as hyperactive comets.

They also state that water may have also been originated from a primitive asteroid called Vesta. Vesta is the second-largest object in the Asteroid belt.

Points from Harvard University:

1. Planetary Cooling
2. Extraplanetary sources
3. Hydrate minerals
4. Volcanic activity
5. Water development when the earth has been formed

The origin of Earth’s water has been debated for a long time, but this new study points to a source – the solar nebula, or cloud of gas and dust left after the sun’s formation – that had been previously mostly overlooked. The new work, based on computer modeling, may have implications for rocky worlds orbiting distant stars.

 Hope I've given you the correct information. Kindly support me by commenting and Sharing.

Raksita Rajagopal

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About Myself:  I am Raksita Rajagopal and this is my blog. I am very interested in science and space. You can see other posts from my blog below!
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