Science and Technology · Gravitational Waves
In the context of recent astrophysical discoveries, what primary phenomenon is associated with the 'cosmic background hum' detected by pulsar timing arrays?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1High-frequency cosmic microwave radiation
- 2Low-frequency gravitational waves permeating the universe✓
- 3Dark matter annihilation signals from galaxy clusters
- 4Fast radio bursts from magnetars
Correct answer
Low-frequency gravitational waves permeating the universe
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