Hi all,
The article's heading suggests that the graviton's spin may be left-handed but it may be right-handed or ambidextrous. That's of course if gravitons exist at all.
I found this hypothesis rather interesting as it makes an observable prediction that could lead us in new directions in the quest to unify gravity with quantum mechanics. Looks like the CMBR is becoming even more significant. Guess we are going to have to wait.
New Scientist article ...
http://www.newscientist.com/article/...ef=online-news
Regards, Rob