Why are gyroscopes important?

Related questions

1. What do you mean by gyroscope?
2. What is gyroscope effect?
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6. Is gyroscope affected by gravity?
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Tags

1. #important
2. #because
3. #ensure
4. #telescope
5. #gyroscopes
6. #pointing
7. #measure
8. #observations
9. #motion
10. #hubble
11. #correct
12. #during
13. #moves
14. #retains