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Bubble collisions in the early universe birthed super-heavy neutrinos that explain dark matter, and left a gravitational hum detectable by future instruments.
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The universe once 'boiled,' and in the collisions of bubbles, unseen particles were born. Their gravitational echo might reach us before too long.
🎯 The temperature of this cosmic 'boiling' was a billion times higher than that at the Sun's core.
🎬 This low hum that fills the cosmos may be the first whisper of an invisible world, one we'll soon decipher.