galactic noise

noun

1. unidentified radio-frequency radiation originating from beyond the solar system.

Example Sentences

The latest findings do not mean that it is impossible to find evidence of gravitational waves in the microwave background—only that BICEP2 could not conclusively detect a signal amid the Galactic noise.

From Scientific American

The findings do not mean that it is impossible to find evidence of gravitational waves in the microwave backgrounnd — only that BICEP2 could not conclusively detect a signal amid the galactic noise.

From Nature