TV Snow Carried the Universe’s Oldest Light, Mostly Hidden in Plain Sight
A Space Daily explainer shows that some analog TV static came from the cosmic microwave background, the faint relic light from the early universe, though the exact share is device- and environment-dependent and often overstated as a fixed percent. Most of the snow was from the TV set itself and terrestrial noise, not the CMB. The CMB was discovered by Penzias and Wilson in 1964–65 and interpreted as Big Bang relic light by Dicke’s group; it dates to about 380,000 years after the Big Bang (recombination) and has cooled to ~2.7 kelvin today. With analog broadcasting retired, the historical “oldest light” is a memory, though the science remains.
