Talk:Sputnik 4

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" prerecorded voice communications"

What is the purpose and meaning of that?

To test space-to-ground radio systems later used by cosmonauts

Ought there to be some mention of Heinlein’s suspicions that there was actually a live cosmonaut aboard?

No, it is definately known today that it was unmanned. A series of tests with dummies and dogs were made before the first manned flight. 71.112.91.209 18:13, 2 January 2007 (UTC)

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Should "attitude" in the last sentence be "altitude"? Or is this a correct term?

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This page gives the reentry date as 15 October 1965. Which is correct? Bastie 02:14, 29 January 2007 (UTC)