Science and Discovery

Cosmic Expansion

2 articles

Editorial illustration for Dark Energy: The Unseen Cause of the Universe's Accelerating Expansion
Cosmos & Space

Dark Energy: The Unseen Cause of the Universe's Accelerating Expansion

Dark energy is the mysterious phenomenon driving the universe's accelerating expansion, inferred from distant supernovae observations. Despite the cosmological constant being the leading explanation, a vast theoretical discrepancy with quantum physics remains a profound puzzle.

Marcus Cole·October 15, 2026
Editorial illustration for Mapping Cosmic Expansion with CHIME's Hydrogen Signals
Cosmos & Space

Mapping Cosmic Expansion with CHIME's Hydrogen Signals

The Canadian Hydrogen Intensity Mapping Experiment (CHIME) uses Hydrogen Intensity Mapping to observe faint radio signals from hydrogen gas, charting the universe's expansion history and investigating dark energy. This innovative technique leverages Baryon Acoustic Oscillations as a cosmic standard ruler, offering a faster, more cost-effective alternative to traditional galaxy surveys.

Marcus Cole·October 1, 2026