Life Magazine August 5, 1966 :Cover - Man's highest photos of Earth taken during Gemini 10's near-perfect mission.Concern about growing clutter of space trash. Progress toward space law. Half-page "Keep America Beautiful" with picture of Louis Nye-The Cleanup Man." Is it really a picture of the long-missing Mao Tse-tung swimming in the Yangzte? Profile of President Jomo Kenyatta of the newly-independent nation of Kenya. Profile of 13-year-old Tom O'Hare guerilla fighter who helps his father, a Korean veteran and master sargeant in the Air Force reserve, train Vietnam-bound troops. Excerpts of Thomas Merton's new book, "Conjectures of a Guilty Bystander" to be published by Doubleday in November. Ideas in Houses - round home moored to a hill in Boulder, Colorado. Full page color ad introduces the Dixie cup dispenser.