Entry from US English dictionary
Definition of galactic noise in English:
Unidentified radio-frequency radiation coming from beyond the solar system.
- And the Voyager signals are directed towards Earth using microwave frequencies where galactic noise is relatively low, and antenna gain is high.
- Fortunately, however, the man-made and galactic noise abate even more quickly.
- So-called galactic noise is radio noise from outside the solar system.
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