⏰ when
When was the first evidence for the expansion of the universe published?
Quick Answer
It was published in 1929 by Edwin Hubble.
The Full Story
Edwin Hubble published the first strong observational evidence for the expanding universe in 1929. By comparing galaxy distances with their redshifts, he found that more distant galaxies are generally moving away faster. This relationship is now known as Hubble's law. It transformed cosmology and became a cornerstone of the modern Big Bang model.
Key Facts
1.Published in 1929
2.Based on galaxy redshifts
3.Known as Hubble's law
YouTube Angle
Suggested video title for this topic:
"The discovery that the universe is stretching."
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