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Virtual particle pairs are “ghost” versions of matter and antimatter that pop in and out of existence in empty space. They are created by quantum fluctuations, where the universe “borrows” a tiny bit of energy to make them, then gets it back when they instantly collide and vanish.

Think of them like static on a TV screen: the screen looks empty from a distance, but up close, it’s a constant flicker of tiny dots appearing and disappearing. Another way to imagine them is as bubbles in a boiling pot of water: they rise from nowhere, exist for a second, and then “pop” back into the liquid. They aren’t permanent parts of our world, but they act as the “messengers” that carry forces between real particles.

Ruby Ward

Teacher, science writer, and editor. Making science clear, engaging, and accessible.

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