Folks, would like to know what is the temperature of the universe way out there and is it constant in all places? thanks.
2006-10-05 09:10:00 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
It might range between -148F degrees at night to 248F degrees in the day in outer space and of course can get hotter or colder near stars, planets or other solid objects.
2006-10-05 09:19:26 · answer #1 · answered by SunFun 5 · 2⤊ 0⤋
The temperature of the universe is obviously not constant everywhere. It's much hotter on mercury than on earth, and it's a lot hotter in star, etc.
I think maybe what you are asking is "what is the temperature of a vacuum." Since temperature is related to the movement of particles, and no such particles exist in a vacuum... then we don't really have a temperature, do we? (though CMB will warm objects, as pointed out)
So I may be going out on a limb, but you may be asking what the vacuum _energy_ is... which is a very complicated matter. But you can find some info on it here: http://en.wikipedia.org/wiki/Vacuum_energy
2006-10-05 16:27:12 · answer #2 · answered by Jonny Jo 3 · 0⤊ 0⤋
The least possible temperature, which is essentially the absence of all heat is about -273 degrees Celcius, or 0 Kelvin. That is what scientists have determined. They are not yet sure whether "negative heat" exists, just like antimatter.
It is ofcourse not constant. Near the sun and other sources of radiation, the temperature can reach upto millions of degrees.
2006-10-05 16:13:54 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Everything in the Universe is heated by the Cosmic Microwave Background, or CMB. While things can get colder, they must warm up again sooner or later because of this residual radiation that permeates the Universe, left over from the Big Bang. It has a temperature of about 2.725 degress kelvin, or around -270 celsius.
2006-10-05 16:12:31 · answer #4 · answered by Anonymous · 2⤊ 0⤋