Al Marsad Newspaper: The source of Earth’s water has been the subject of a long-running debate in the scientific community, as one of the most pressing questions in scientists’ ongoing effort to understand how life originated.
Although approximately 70% of the Earth’s surface is covered by water, our planet is generally a relatively dry place compared to many other bodies in the solar system, and the Moon is drier.
Earth was born with water, according to Russia Today.
The scientists, led by cosmologist Greg Brenica, concluded: “Earth was born with the water we have, or we hit something that was essentially pure (H2O) water, with nothing else in it. This work removes meteorites or asteroids as potential sources of water on Earth and points strongly toward Birth with this (grace) water.”
In addition to significantly narrowing down the potential source of Earth’s water, this work also reveals that the large objects that collide must have come from the inner solar system, and the event might not have occurred before 4.45 billion years, significantly shortening the formation time of the Moon.
Solar System
According to Lars Burg, the study’s lead author: “There were only a few types of material that might combine to form the Earth and the Moon, and it wasn’t strange, it’s likely that both were just large bodies that formed roughly in the same area that happened to collide with each other more than a year later. A little 100 million years following the formation of the solar system… but we are fortunate that they did exactly that.”