Re: Space Travel Question

[Randy Dick <RandyD@LGMS.PVT.K12.PA.US>]

A teacher wants to know:
When a manned spacecraft returns to earth there is generally a radio
blackout of 2-3 minutes just before touchdown. What is this called, what
causes it, and is there a certain layer of the earth's atmosphere that it
is passing through.
Thank you for your help.

*************************************
Randall Dick
Librarian
Locust Grove Mennonite School
2257 Old Philadelphia Pike
Smoketown, PA  17576

school:  randyd@lgms.pvt.k12.pa.us
home:    rdick@lancnews.infi.net
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