|H2O Molecule (Image by Ju)|
Space.com reports that “Earth and the moon have indistinguishable oxygen isotope ratios, within 5 parts per million when it comes to oxygen-17.” So what might this mean?
This much similarity suggests that the moon was once part and parcel of a newborn earth. Shortly thereafter, “Earth was hit by a Mars- size rock named Theia.” Researchers believe that debris from this impact “later coalesced into the moon.”
Since oxygen-17 is water-bearing, these findings hint that moon rocks might also contain some forms of the wet stuff.
Copyright January 31, 2016 by Linda Van Slyke All Rights Reserved