👤 whose
Whose observations confirmed that the universe is expanding?
SpaceAstronomy
Quick Answer
Edwin Hubble showed in 1929 that distant galaxies are moving away from us. His work established the expanding universe.
The Full Story
Edwin Hubble, the American astronomer, used observations of galaxies and their redshifts to show in 1929 that the farther away a galaxy is, the faster it appears to recede. This relationship is now known as Hubble’s law. It provided strong evidence that the universe is expanding, supporting the earlier theoretical work of Georges Lemaître. Hubble’s findings transformed cosmology and remain fundamental to modern astronomy.
Key Facts
1.1929: Hubble published the expansion relation
2.Hubble’s law links distance and recession speed
3.Lemaître had earlier proposed expansion mathematically
YouTube Angle
Suggested video title for this topic:
"The discovery that the universe is stretching apart"