Scientists have discovered that Earth's water is present on Earth before the giant impact that created the moon. Previously, what it understood Earth's water was carried to Earth in a series of later asteroid and bombardments –
This may not be significant at face value, but it has implications for our understanding of how life could have developed on Earth – or how it could have existed elsewhere.
Dr. (19659004) Dr. Richard Greenwood, the lead researcher on the study from the Open University, stated that "Because water is such a vital ingredient for life, we justly see it as precious. Our research shows that water is also extremely resilient and can collapse as catastrophic as two planets colliding. "
In order to come up with this conclusion, the scientists on the research team compared the oxygen composition of moon rocks brought back to Earth by Apollo astronauts with that of volcanic rocks. There is only a small difference between the rocks in Earth's water and the rocks. Earth's water has been around a lot.
Earth's water has been around a lot Longer than we previously thought.
The giant impact of the solar system is over 100 million years after the solar system has been formed.
"Because this worked for the earth and the moon, it must be work for planets beyond." our solar system … exoplanets with water on their surfaces may be more common than we previously thought. And where there is water, there could be life, "Dr. Greenwood added.
While the knowledge that Earth's water is around for a while gives us hope that we can not be alone in the galaxy, it does not bring us any closer to actually discovering said life. Practically, there may not be a lot that comes from this new knowledge. However, with a better understanding of Earth's water and our planet's history, we may be able to approach the exploration of new planets with the knowledge that alien life is much more feasible.