Loading…
Loading contentLoading…
Loading contentPenzias and Wilson detected a faint microwave glow coming uniformly from every direction — the cooled afterglow of the hot early universe.
The decisive evidence for the Big Bang and a cornerstone of modern cosmology.
Facts on this topic will be cited from these primary and reference sources.
Official record of Nobel laureates, prize motivations, and award years.
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.