71 per cent of the Earth’s surface is covered with water. And of all the water in the world, 96.5 percent is contained in the ocean. There is water even inside your body (the average human body is 50-65 percent water). Water is also underground in aquifers where well drillers find it. It’s safe to say that water exists anywhere on Earth in one form or another.
But have you heard of people manufacturing water? With all of the technology available, it might be strange to know that this hasn’t been done yet. The process is theoretically possible, but very impractical and dangerous. So the Earth’s water must’ve come from somewhere else.
There’s no way to create water by conventional means. You can’t just mix two hydrogen atoms and one oxygen atom. You’ll need to combine the orbits of the electrons of each atom. To do that, a huge, sudden burst of energy is required. But hydrogen is flammable and oxygen is a combustion aid. So in other words, the energy you need must be enough to cause a massive explosion. It’s a dangerous process overall.
That said, where did the world’s water come from? Scientists believe that water’s origins go back some 13.8 billion years to the time of the Big Bang. About three minutes after the explosion, the particles created by the Big Bang’s energy bumped into one another, creating the simplest nuclei in the universe, including hydrogen. Oxygen comes later, purportedly from stars that went supernova. The extremely hot interiors of these stars created carbon, nitrogen, and oxygen, which were then scattered into space after the stars die.
Scientists are in a conundrum, however. Water molecules may have already existed in space, but the young Earth is very hot and has no atmosphere. This made it impossible for water to stay on the Earth’s surface because it would’ve evaporated back into the void. Thus, experts assume that the water found its way to the planet via comets or asteroids.
Adam Sarafian of the Woods Hole Oceanographic Institution (WHOI) in Massachusetts disputes the claim that water was already here at the time of its formation. His research shows that the Earth didn’t have water until 4.6 billion years ago. They infer that it was brought by meteorites from the asteroid Vesta, whose material composition showed traces of carbonaceous chrondites. These materials, Sarafian and his team claims, are the most logical common sources of water in the primordial solar system.
As it turns out, water seems to be a foreigner on Earth compared to humans and other life forms.