Gravitational waves are
A) instabilities generating cosmic rays.
B) ripples in the fabric of spacetime.
C) structures on the event horizon of a black hole.
D) tidal forces that elongate objects falling into black holes.

Question

Quizplus · Accepted Answer

Gravitational waves are ripples in the fabric of spacetime caused by some of the most violent and energetic processes in the universe, such as colliding black holes or exploding stars. Albert Einstein predicted their existence in 1916 as part of his general theory of relativity.

Gravitational Waves Are