⏰ when
When was the first precise age estimate of the universe from the CMB published?
PhysicsCosmology
Quick Answer
In 2003, results from NASA’s WMAP mission gave a precise age for the universe of about 13.7 billion years.
The Full Story
In 2003, the Wilkinson Microwave Anisotropy Probe (WMAP) produced a highly precise age estimate for the universe of about 13.7 billion years. That result came from detailed measurements of tiny temperature variations in the cosmic microwave background. Later data refined the number slightly, but WMAP was a major leap in precision cosmology. It showed how tiny patterns in ancient radiation can reveal the age and composition of the cosmos.
Key Facts
1.WMAP result: 2003
2.Age estimate: about 13.7 billion years
3.Based on CMB temperature fluctuations
YouTube Angle
Suggested video title for this topic:
"Tiny ripples in ancient light told us the universe’s age."