Researchers say cosmic dust may explain how organic molecules reached early Earth.
Thousands of tonnes of space dust hit Earth each year, mostly burning in the atmosphere.
Some fragments survive as meteorites, carrying clues about star formation and chemistry.
At the University of Sydney, PhD researcher Linda Losurdo recreated cosmic dust in a laboratory.
She simulated dying stars by energising gas mixtures inside a vacuum tube.
The process produced dust containing carbon-based molecules essential to life.
Scientists hope this work explains how meteorites gained organic matter.
The study appears in the Astrophysical Journal.
Sydney Scientists Recreate Cosmic Dust to Probe Origins of Life
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