What is the temperature of space?

Answer 1

Empty space itself cannot have a temperature, unless you mean some
abstruse question about quantum vacuums.

However, if you put a physical object into space, it will reach a
temperature that depends on how efficiently it absorbs and emits
radiation and on what heating sources are nearby. For example, an
object that both absorbs and emits perfectly, put at the Earth's
distance from the Sun, will reach a temperature of about 280 K or 7 C.
If it is shielded from the Sun but exposed to interplanetary and
interstellar radiation, it reaches about 5 K. If it were far from all
stars and galaxies, it would come into equilibrium with the microwave
background at about 2.7 K.

Spacecraft (and spacewalking astronauts) often run a bit hotter than
280 K because they generate internal energy. Arranging for them to
run at the desired temperature is an important aspect of design.

Some people also consider the "temperature" of high energy particles
like the solar wind or cosmic rays or the outer parts of the Earth's
atmosphere. These particles are not in thermal equilibrium, so it's
not correct to speak of a single temperature for them, but their
energies correspond to temperatures of thousands of kelvins or higher.
Generally speaking, these particles are too tenuous to affect the
temperature of macroscopic objects. There simply aren't enough
particles around to transfer much energy. (It's the same on the
ground. There are cosmic rays going through your body all the time,
but there aren't enough to keep you warm if the air is cold. The air
at the Earth's surface is dense enough to transfer plenty of heat to
or from your body.)

Answer 2

Temperature of a system is the amount of heat or energy in a system.
According to the COBE satellite which confirmed earlier earthbound observations, leftover energy radiation from the Big Bang [exactly like a previous answerer stated] is on average approx 3 degrees above absolute zero (3 degrees Kelvin) or approx -270 degrees C.

Answer 3

This is another name for the temperature of the cosmic background radiation which has a temperature of 2.7279 K which was determined by the NASA COBE satellite in 1992. Satellites such as COBE and WMAP have accurately measured this temperature to one part in 100,000 and the temperature is very constant across the sky. There are, however, irregularities in this temperature at a level of a few millionths of a degree.

Answer 4

At its coldest, space is - 454 degrees Fahrenheit, about 3 degrees above absolute zero. This temperature is actually the leftover heat from the Big Bang that gave birth to our universe.

Answer 5

Nothing.

Temperature is a measure of how much energy an object has. Space is the absense of matter, so there would be no temperature.

Answer 6

there is no temeperature in space because of no moving winds its just all vancuum and plus our highest part of our earth atmosphere where the internation space station(ISS) is its so damn hot over there tat it can burn anyone to death that is why they have air condintors in the space suit also heaters but the insulation helps astronauts to live from the heat.

Answer 7

It varies slightly from place to place, but typically not more than a few degrees above absolute zero.

Answer 8

the teperature is -40 celcius

Answer 9

u would freeze to death in the shade, and burn if light tuches u.

Answer 10

K-biz is correct.