Multiple choice general knowledge science & technology

Astronauts become two inches shorter on return from space.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The statement is false as written. Astronauts actually become TALLER in space (up to 2-3 inches) due to spinal disc expansion in microgravity, not shorter. Upon return to Earth's gravity, this additional height is lost as the spine recompresses. The question reverses the actual phenomenon - they grow in space and shrink back to normal on Earth, not become shorter than they started.

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