As much as I enjoyed Neil Degrasse Tyson's Cosmos, I wish he would of scraped into some of these theories as well as the Drake equation. Although he did talk ab

As much as I enjoyed Neil Degrasse Tyson's Cosmos, I wish he would of scraped into some of these theories as well as the Drake equation. Although he did talk about William Herschel he failed to mention his theory about life on the sun. Overall, very intriguing. Adding your mention of the Drake equation got me looking into it a bit, added some flavor to this article. Thank you.