⏰ when
When was dark energy discovered?
Quick Answer
Evidence for dark energy emerged in 1998 from observations of distant supernovae.
The Full Story
In 1998, two independent teams studying Type Ia supernovae found that the expansion of the universe is accelerating. The teams were led by Saul Perlmutter and by Brian Schmidt and Adam Riess. Their results implied the presence of a mysterious component now called dark energy, which appears to make up about 68% of the universe. The discovery transformed cosmology and earned the 2011 Nobel Prize in Physics.
Key Facts
1.Key evidence published in 1998
2.Led by Saul Perlmutter, Brian Schmidt and Adam Riess
3.Dark energy is estimated to make up about 68% of the universe
YouTube Angle
Suggested video title for this topic:
"The discovery that the universe isn’t just expanding — it’s speeding up."
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