Why is there Water on planet earth?
Why is there Water on planet earth?
Earth is the only planet that contains water among all the planets of the solar system, and while only a small part of Earth’s water is drinkable, approximately 70% of our planet is covered by oceans, lakes, rivers, swamps and other water sources, and it is known that water An element necessary to sustain life, but the scary thing is that we don’t know how water got to our planet in the first place.
Is water born with the planet or is it alien?
The Earth originated in the beginning with the rest of the planets of the solar system from a cloud of dust and gas, and that was about 4.5 billion years ago. Just as he gained rocks? This is the baffling question.
Some scientists suggest that comets supply the planet with water, but this theory is complicated, and if we go back to 2014, we will find that scientists discovered that the comet that the Rosetta mission studied, has a different type of water than the one on our planet, so it is likely that some comets have I sent water to our planet, but not all of it.
Another possibility is that the Earth may have been born wet, and as it gradually gained mass by attracting rocks close to its gravitational field, those rocks had water inside them, but if that was the case, how did those rocks expel the water inside to form the oceans we see today on our planet? .
New study
There is a new theory that can answer the last question, which is how the water came out of the rocks, and the answer here is closely related to the location of the Earth in the middle of the solar system. Fortunately, our planet is located in a region where the sun’s rays are warm enough to prevent water from freezing, and at the same time Not so high that the water on the surface of the earth evaporates.
Scientists suggest that our planet initially originated from dust grains that contained water within them. Over time, the water-laden dust adhered to each other under the influence of gravity, and the dust became pebbles, and rocks rich in water stuck to it, and eventually the Earth was formed from water-rich origins.
Another study suggests that small dust grains can collect enough water in only a million years, and this explains the large amount of water on Earth, because the age of the solar system is about 4.5 billion years.
This theory also may explain why there is water elsewhere within our solar system, for example Jupiter’s moon Europa has an ocean of water-frozen under its crust, and there are also plenty of water-frozen worlds in our solar system alone.