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.

Artist’s impression of the path the fast radio burst FRB 20220610A took …