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Astronomy

Gravitational Waves: Ripples in Spacetime from Cosmic Events

Quick fact

Gravitational waves were first directly detected by LIGO in 2015 from a binary black hole merger 1.3 billion light-years away, confirming a prediction made by Einstein 100 years earlier.

Why this is interesting

Imagine the universe as a still lake; now picture two massive boulders crashing together underwater. The ripples that spread across the lake are like gravitational waves—but what makes the fabric of space itself ripple?

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Gravitational Waves: Ripples in Spacetime from Cosmic Events

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