Term: Astronaut, Description: Person who commands, pilots, or serves as a crew member of a spacecraft, Question: Has every astronaut survived their space journey?, Answer:No
Fact1: In 1986, the space shuttle Challenger exploded during launch, killing all astronauts aboard. Fact2: In 2003, the space shuttle Columbia also exploded, again killing its entire crew. Fact3: Various other space flights have resulted in fatal disasters. 