Create a custom practice set
Pick category, difficulty, number of questions, and time limit. Start instantly with your own quiz.
Generate QuizThe Challenger Space Shuttle disaster occurred in _______.
- 1984
- 1986
- 1988
- 1990
Answer: 1986
Space Shuttle Challenger broke apart 73 seconds after liftoff on January 28, 1986, killing all seven crew members. The cause was O-ring failure in cold weather.