Âm thanh chia sẻ

In 1977, something unusual happened. A radio telescope in Ohio detected a powerful signal from deep space. It lasted just 72 seconds. Then it vanished. No known source. No repeated pattern. No explanation. This became known as the “Wow! Signal.” To this day, scientists cannot fully explain it. Was it a natural phenomenon? Or something… else? Since then, astronomers have discovered mysterious bursts of energy—fast radio bursts—originating from distant galaxies. These signals appear suddenly, rele