Didi M

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Einstein predicted gravitational waves 100 years ago. Here’s what it took to prove him right.

By Sarah Kaplan<p>Sarah Kaplan<p>Reporter for Speaking of Science<p>Email Bio Follow<p>The “chirp” is bright and bird-like, its pitch rising at the end as though it’s asking a question. To an untrained ear, it resembles a sound effect from a video game more than the faint, billion-year-old echo of the …

Gravitational Waves

Green Tea Field

Peach

Aomori Japan

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