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Name: John M.
Status: educator
Age: 50s
Location: N/A
Country: N/A
Date: 10/2/2004


Question:
Is the Earth's moon moving closer or farther away from Earth? Our class figured out that if satellites like the International Space Station need to be boosted every once in awhile, maybe the moon needs some help too.


Replies:
The moon has been stable for a long time, and all indications are it will remain so. The ISS needs an occasional boost because it is in relatively low orbit and is subject to a small atmospheric drag that reduces its distance from earth. Consequently, it needs a kick periodically.

Vince Calder



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