View Full Version : Moon’s Water Came From Comets, Study Says

2011-Jan-13, 07:30 AM
A new study reveals that the water within the Apollo Moon rocks – and within the Moon itself — likely came from comets bombarding the nascent lunar surface, shortly after it formed following an impact event with a young Earth and Mars-sized protoplanet. The recent findings of abundant water at the lunar poles by the [...]

More... (http://www.universetoday.com/82398/moons-water-came-from-comets-study-says/)

2011-Jan-13, 12:49 PM
I don't see why they were surprised that isotope ratio was different between water on Earth vs Moon. I would think that the Earth's atmosphere would account for the difference.