Machine-translated by Google. Questions are authored in English.
Top

Discussion

To an astronaut, the outer space appears

  • A.White
  • B.Deep blue
  • C.Red
  • D.Black

Answer: D

To an astronaut, outer space appears black.

The sky is blue on earth because air molecules scatter sunlight; in the vacuum of space there is nothing to scatter it, so no light reaches the eye except directly from the sun, the stars and lit surfaces. The sun therefore shines against a black sky.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.