The courier spacecraft dropped down out of supervelocity and emitted an overwhelming blast of radio signal. One half of the output tube operating life went into Eternity in one half minute of intense power.
Minutes later space stations picked up the radio blast and had radiogoniometers pointing the angle; which when correlated with other space stations bracketed the courier spacecraft nicely. A telemeter beam fingered out and caught the radio-controlled circuits of the courier and the courier turned obediently and started to blast towards Terra.
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