Q
What are gravitational waves?
A
Expert Answer
Ripples in spacetime caused by accelerating massive objects, predicted by Einstein and detected by LIGO in 2015. They travel at light speed and carry information about cataclysmic events (black hole mergers, neutron star collisions) invisible to traditional telescopes.
Key Insight
Ripples in spacetime caused by accelerating massive objects, predicted by Einstein and detected by LIGO in 2015.
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