Where does the water from the Earth come from?

New York, November 8 (IANS) The water of the planet's oceans could come from both an asteroidal material and gas left behind by the formation of the Sun, according to new research which gives indications on the development of other planets and on their life potential.

The researchers noted that, comets containing a lot of ice, they could have provided water. Asteroids, which are not so rich in water and yet still abundant, could also be a source.

"But there is another way of thinking about water sources in the days of solar system formation," said Peter Buseck, professor in Arizona. State University.

"Because water is hydrogen plus oxygen and oxygen is abundant, any source of hydrogen could have been at the origin of the water of the Earth, "added Buseck.

The study challenges conventional wisdom about hydrogen in the world. The water of the Earth suggesting that the element came partly from clouds of dust and gas remaining after the formation of the Sun, called solar nebula.

If the abundant hydrogen of the nebula could combine with the rocky material of the Earth during its formation, this could be the ultimate after the researchers, the origin of the world ocean is the Earth.

"The solar nebula has received the least attention among the existing theories, although it is the predominant reservoir of hydrogen in our primitive solar system," said the author. main. Jun Wu, badistant professor at the university.

The new discovery fits perfectly into the current theories on the formation of the Sun and planets. This also has implications for habitable planets beyond the solar system.

Astronomers have discovered more than 3,800 planets in orbit around other stars, and many seem to be rocky bodies not very different from ours.

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