Cover of Is anybody out there?

Mark as

Is anybody out there?

"Topics in this video range from the meaning of the Drake Equation, to methods of discovering extasolar planets, to initiatives that will help pinpoint probable life-supporting worlds."--Container.

More by Paul Ryan

Review
Review
Review
Review
Review
Review
Review
Review
Review
Review
Review
Review
Review
Review
Review
Review
Review
Review

Recent activity

Rate this book to see your activity here.

Comments and reviews

Please sign in to leave a comment