What is associated with: 1 of the 3 planets you wont be able to see with the naked eye in 1989?

Based on the clue '1 of the 3 men whove been the farthest from earth ...', what is the answer? Based on the clue '1 of the 3 minerals on the mohs scale that can be ...', what is the answer? Based on the clue '1 of the 3 national capitals in the western hemisp...', what is the answer? Based on the clue '1 of the 3 naturally occurring magnetic elements', what is the answer? Based on the clue '1 of the 3 sections of the small intestine', what is the answer? What is associated with: 1 of the 3 singers on the 1993 no 1 hit all for love from the film the three musketeers? Based on the clue '1 of the 3 things we mutually pledge to each other...', what is the answer? What is associated with: 1 of the 3 things which according to john fremonts 1856 gop campaign should be free?