The mystery continued. More scientists got involved. It was 1988, just eleven years ago. Clyde Tombaugh wished them luck in their planet hunt. He was getting older now, he was in his 80's.
People never give up a quest.
Once it's started, it's always finished. To find a planet is no easy task. First, you have to figure out 'where' to look. Then, you have to start looking. Well, two men, Robert Harrington and Kenneth Seidelmann, took up the quest.