Where does Earth's water come from? Scientists find liquid water in meteorites, water prevalent in solar system

We all know that the Earth has an abundance of liquid water, which is one of the key factors that allows the Earth to nurture life. So, is the water on Earth, is it there itself, or from space?

The water of the Earth comes from the sky!

The source of water on Earth, over the years, scientists have been debated, roughly divided into the following 2 views: First, the water on Earth from the Earth's interior, this view is called "endogenous," that the birth of the Earth, the Earth's interior has been liquid water, and later when the Earth at the end of the plutonic, meteorites, comets and another wild bombardment. Later, when the Earth was bombarded by meteorites and comets at the end of the Paleogene, the water inside the Earth poured into the surface and became the primordial ocean.

The second point of view is now generally agreed to as the "exogenous theory", In this view, the Earth's water is not generated by itself, but from space, meteorites, comets, etc. for the Earth to send water.

Now, through years of research, scientists have found that not only on top of the Earth, many cold planets in the solar system, there are also traces of water, even on the most "scary" planet in the solar system - the atmosphere of Venus, there is also These findings mean that water is not exclusive to the Earth, but is widespread in the solar system.

Researchers believe that water played an extremely important role in the early stages of the solar system's evolution and that the water resources in the solar system, which are so abundant, probably came from the earliest asteroids in the solar system.

The asteroids became the solar system's "master of water"?

On Earth, scientists have discovered a 4.6-billion-year-old meteorite, a carbonaceous spheroidal meteorite whose parent body is an early solar system asteroid.

Scientists from Japan, who have been studying this meteorite for years, found that the salt crystals of these meteorites contain liquid water, and it is worth mentioning that the vast majority of meteorites on Earth belong to carbonaceous spheroidal meteorites, which means that they all came from the earliest inhabitants of the solar system, and they sent liquid water to Earth.

Researchers believe that about 4.6 billion years ago, a large number of asteroids appeared in the solar system, although the distance between these asteroids and the sun was very far, which led to the water and carbon dioxide inside them, were retained and in solid form later accompanied the evolution of the solar system and began to enter the interior of the solar system.

Eventually, some of the debris collided with the Earth and delivered an abundance of liquid water to the planet. This also means that water exists on other planets, even on the moons around the planets, including some of the larger asteroids above today, and just because humans haven't found it, doesn't mean it doesn't exist.

Is it possible that there is another life in the solar system?

We all know that although life is common on Earth, outside the Earth, scientists have never found traces of extraterrestrial life, so, since water is widespread in the solar system, as the "source of life", could there be other planets in the solar system, there is life?

The answer is very likely. Now, scientists have discovered the fact that on Mars and Venus, in ancient times, there is a high probability of abundant life, especially on Mars, NASA's Curiosity Mars Rover, some time ago also found Mars, the chemical composition suitable for the survival of modern microorganisms.

Similarly, the mystery of Venus' phosphine, which shocked the scientific community last year, has not yet been completely uncovered. There are other natural moons that scientists are bullish on Io, Titan, etc., and even Ceres, the only dwarf planet in the asteroid belt.

The reason why scientists are optimistic about them is that these relatively small objects may have rich subsurface oceans, as mentioned above: water is considered to be the source of life, naturally, if there is really rich liquid water under the ice shell of these objects, it means that there is likely to be living in them.

However, some scientists previously speculated that the presence of complex fish life in Io's subglacial ocean is unlikely, but the presence of microorganisms found on these planets is still more reliable.

Today, NASA's Trailblazer Mars probe has begun to look for extraterrestrial life on Mars, at the same time, the future NASA will also launch the Io probe and Ceres probe, hoping to be on top of them, to find the ultimate answer to extraterrestrial life in the solar system.

If we can find other life in the solar system in the future, this will also let us have a corresponding understanding and reference to the exoplanet world, let's say some surface looks cold, but the internal world may be similar to Io exoplanet, there may also be life, together with wait and see!