Ancient Radio Waves Arrive From Distant Past, Hitting Earth After 8 Billion Year Journey
Astronomers discovered radio waves that traveled over 8 billion years from a collision of ancient galaxies, giving clues about the early universe.
Astronomers detected radio waves from 8 billion years ago, more than half the universe's age.
The powerful blast came from ancient galaxies crashing together when the universe was young.
Studying the radio waves helps reveal what matter was like between galaxies billions of years ago.
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