What are gravitational waves?
They are ripples that carry energy across the universe (ripples in the
curvature of space-time continuum). The existence of the gravitational waves
was made by Albert Einstein in his general theory of relativity. Till now there
was no direct evidence as these waves are hard to be detected.
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| source:scienetechdaily.com |
How proved?
By BICEP2 (Background Imaging of Cosmic Extragalactic Polarization) - a telescope at South Pole
Why important?
In proving big bang theory and cosmic inflation.
What is cosmic inflation?
A theory by Alan Ruth that universe expanded very
rapidly during its initial formation time.
