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Gravitational Waves

Main article: Gravitational wave

Researchers believe that gravitational waves also travel through space, although gravitational waves have never been directly detected. Not to be confused with gravity waves, gravitational waves are disturbances in the curvature of spacetime, predicted by Einstein's theory of general relativity.

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Famous quotes containing the word waves:

    “O beautiful for spacious skies,
    For amber waves of grain,
    For purple mountain majesties
    Above the fruited plain!”
    —Katharine Lee Bates (1859–1929)