The CMB originated when the universe went transparent to electromagnetic radiation, when electrons and protons first combined to form hydrogen. This is estimated to have happened some 377.000 years after the onset of the Big Bang.
2.73 kelvin
most of it is much colder
So what is the average of the 2.73 Kelvin and the rest of the Universe that is much colder?
The average temperature of the cosmic microwave background is 2.725 degrees Kelvin. The small variations (anisotropies) are about 1 part in 100,000.
The cosmic microwave background radiation has a black-body spectrum with a temperature of 2.7 K (2.7 Kelvin, or about -270.5 oC).
The question makes no sense. It is like asking for the size of starlight!
It's everywhere.
The temperature will most likely go down because over time the universe continues to expand and cool.
The lowest temperature observed in the universe is -272.15 Kelvin in the most coolest place of universe "boomerang nebula " also cosmic background radiation approaches this temperature
The lowest temperature was -40 degrees Fahrenheit.
The average temperature of the surface of Uranus is -224° Celsius.
Mercury has an average surface temperature (67°) closest to the Earths average surface temperature (14°C). The temperature on Mercury varies a lot though - you could argue that Mars is closer in temperature.
The universe is about 2.3 Kelvin
The temperature will most likely go down because over time the universe continues to expand and cool.
The average temperature of the universe now is 2.72548K (the cosmic blackbody radiation of the big bang cooled by expansion). There are places colder, but nothing can be as cold as 0K (absolute zero).
The lowest temperature observed in the universe is -272.15 Kelvin in the most coolest place of universe "boomerang nebula " also cosmic background radiation approaches this temperature
The big bang was the BEGINNING of the universe so there was no temperature before it :P
The Universe was at 3000 degrees K at conception, and since then, the universe has expanded by a factor of 1000. The latest revised temperature is at 3 degrees K.
The Universe was at 3000 degrees K at conception, and since then, the universe has expanded by a factor of 1000. The latest revised temperature is at 3 degrees K.
The average temperature is here. The average temperature is here.
Average room temperature.
Uranus, with an average temperature of -355 degrees Fahrenheit and -215 degrees Celsius.
Any object in the universe with a temperature above absolute zero
Average Temperature The average temperature is 68 degrees Fahrenheit.