What are gravitational waves and how are they detected? These waves are ripples in space-time, sometimes caused by neutron stars colliding. They were recently recorded in the groundbreaking LIGO-Virgo observation. Learn more about these ripples in spacetime from the following video by National Geographic.
Top gif image: Two-dimensional representation of gravitational waves generated by two neutron stars orbiting each other (redrawn in higher resolution). Credit: Frank Glowna/Wikimedia Commons.
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