The platinum in your jewelry and car exhaust may trace back to colliding dead stars, forged before Earth existed

Long before Earth came into existence, ancient stars engaged in spectacular collisions, giving birth to precious metals like platinum and gold. Ordinary stars lack the ability to create elements heavier than iron through fusion. A groundbreaking detection of gravitational waves during a neutron star collision in 2017 provided real-time evidence of the formation of these heavy elements, uncovering the cosmic origins of the precious metals we treasure today.
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