History of discovery
The History of Cosmology
From Hubble's discovery that the universe is expanding, through the Big Bang and the detection of its afterglow, to the surprise of the accelerating cosmos and the tensions in today's precision measurements. A century in which cosmology became a science.
Astronomers, eras & methods
Knowledge connections
- Associated withEdwin Hubble
- Associated withThe Hubble Tension
Sources
The primary and reference sources this topic draws on.
- NASANational Aeronautics and Space Administration
Mission data, planetary science, space telescopes, and public-domain imagery.
Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.