Water On Earth Theory Challenged By Rosetta Data.

Many scientists believe that all the water on the Earth was brought by comets.

However, some scientists now think that the data from Rosetta, which shows that the comet’s water is not like Earth’s water, proves that the water came from asteroids.

Water on Earth is distinctive because for every 10,000 water molecules, three deuterium atoms can be found.  When compared to the water samples from 67/P, it was discovered that there was far more heavy water than on Earth.

I’m not saying that the article’s authors have jumped to a conclusion, but we only ever have landed on one comet, and have only analyzed the water on two comets.  There are billions of comets in the Ort cloud, and the comets (and asteroids) that struck the earth in the past to deposit water here may have endured some physical changes during the journey and eventual impact.

While the water on 67P is different than the water on Earth, the water on comet Hartley 2 appears to be exactly the same as the water in our planet’s oceans.

It just seems a little early to me to make a broad conclusion about the origin of water on Earth based on two observations…for events that happened millions of years ago.

– Ex astris, scientia –

I am and avid amateur astronomer and intellectual property attorney in Pasadena, California and I am a Rising Star as rated by Super Lawyers Magazine.  As a former Chief Petty Officer in the U.S. Navy, I am a proud member of the Armed Service Committee of the Los Angeles County Bar Association working to aid all active duty and veterans in our communities. Connect with me on Google +, or by email.


Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.