The Digital Press

In 1964, Bell Labs scientists Arno Penzias and Robert Wilson accidentally discovered cosmic microwave background radiation with a sensitive horn antenna, providing key evidence supporting the Big Bang theory. Their unexpected find helped confirm the universe’s origins and earned them a Nobel Prize.

Why it matters: This discovery gave direct empirical support to the Big Bang theory, shaping modern cosmology’s understanding of the universe’s birth.

The big picture: The antenna was initially built for satellite communication experiments, highlighting how applied technology led to a groundbreaking scientific breakthrough.

The stakes: Without this discovery, the Big Bang theory might have lacked strong observational evidence, delaying advances in astrophysics and cosmology.

Commenters say: Readers appreciate the story’s mix of serendipity and science but note that the discovery confirms a theory rather than proving it absolutely.