Available at 
Tweet
http://www.space.com/searchforlife/0708 ... igids.html
My only * to the article is that my understanding is that the oort cloud is theoretical and not proven...just thought I'd mention since they talk about it like its a given.
My only * to the article is that my understanding is that the oort cloud is theoretical and not proven...just thought I'd mention since they talk about it like its a given.