CHIME Detects Faint Hydrogen Signal, Offering New Insight into Dark Energy

The Canadian Hydrogen Intensity Mapping Experiment (CHIME) has detected a faint radio glow of hydrogen from billions of years ago, providing a new method to investigate dark energy, a mysterious phenomenon accelerating the universe's expansion.

Why it matters. This breakthrough offers a faster and less costly way to study dark energy, one of the biggest unresolved problems in modern physics.