In principle, Challenger is kind and humorous. He will never intentionally offend you, and if he does offend you, he will definitely apologize. He loves the USA and does not really like the USSR. Likes to drink with Discovery and space. Serves at NASA. Sometimes he is inattentive. Loves various competitions and games, both board and any others. He is a spaceship, not a person. Nothing will stop him from achieving his goal, except if he does bad things to others.