The accidental discovery
The universe's first light
Mapping the baby universe
Deciphering the cosmic recipe
YOUR GOAL
Master of The cosmic microwave background
artiteacher The universe's first light
Echoes in the static, echoes in the static, we are listening to the birth of the world.
artiteacher The cosmic expansion has stretched this ancient light from white-hot visible rays into invisible microwaves.
artiteacher When the universe cooled down enough, atoms formed and light was finally set free to travel across space.
artiteacher Trace the universe's oldest light to discover how the Big Bang left its cosmic glow.
Ancient TV static: About one percent of the static on old, analog televisions was actually caused by the cosmic microwave background.
The act or process of combining elements or parts together again. Roughly 380,000 years after the Big Bang, this process released the oldest light in the cosmos.
By what factor has the expansion of the universe stretched the wavelength of the cosmic microwave background?
What was the approximate temperature of the universe when the cosmic microwave background was first released?
What is the current average temperature of the cosmic microwave background today?
What percentage of old analog TV static was caused by the cosmic microwave background?
Why couldn't light travel freely through the universe before the cosmic microwave background was released?
What is the cosmic process called when protons and electrons first joined to form neutral hydrogen atoms?
What color would the cosmic microwave background have been when it was first released?
How many years after the Big Bang was the cosmic microwave background light finally released?