First of all, the black box in an airplane isn’t really black.
It’s fluorescent orange so it’s easier to find.
It’s called the “black box” because it’s associated with death.
The box is made to survive crashes and extreme temperatures, up to 2,000°F for 30 minutes.
Inside are recordings of the pilots’ voices and the aircraft’s flight information from its cockpit on metallic tape.
The tape is a 30-minute-long loop, so that if a plane crashes, the last 30 minutes before impact are recorded.
The box is mounted in the back of the plane, which is the part most likely to stay intact in a crash.