Powers of Ten: About the Relative Size of Things in the Universe By Philip Morrison and Phylis Morrison Books / Paperback Nature › Space Publisher: Scientific American Library, January 1999 Price $23.79 Free Shipping Send to a friend Used - Good Good condition. (space science) $23.79 1 in Stock at Warehouse Quantity Add Free Shipping to continental U.S. OR $1.00 per item discount if shipped to store.