A 9-billion-year-old signal could help explain dark energy A Canadian radio telescope has detected the faint glow of hydrogen from billions of years ago using only its own observations, proving a long-awaited way to map the distant universe can actually work.... Read more: https://worldnewsguru.us/science-news/a-9billionyearold-signal-could-help-explain-dark-energy Originally published on World News Guru