It is cold enough in the outer space. There is a strange equation of temperature has been detected in outer space. The hot elements move quickly, but the cold things are moving slowly. If the atoms reached its stop point, then the temperature is always in zero. But the temperature of space is a little bit warmer than that, it is 2.7 Kelvin or -455 degrees Fahrenheit.
An interesting fact is that the Space is empty in most of its area. It can’t move at all. The temperature has been measured through cosmos where the gases and grains usually move. But all of these cool back down by the radiation of heat. On Earth, the atoms usually bump into atoms of air, water to pass the energy. Thus, any living being feels warmer than the surroundings. But in Space, as there is no water or air, so the objects lose their heat by radiation.
Despite having so many stars, as space has no atmosphere, so the energy couldn’t be absorbed or filter. Also, Space is not a perfect insulator. According to science, an object in space cannot cool down with the thermal conduction. It can cool down by the radiation of infrared light.
There are many places in Space, where the temperature is hot enough to melt any metal within a second. The gas between stars, solar winds is hot enough. But the cosmic background temperature is not at all hot enough; rather it is heart freezing cold out there. Most of the gas in space is thin enough to warm any object.
Also, these are not enough gas particles to bump and transfer heat. So, when the astronauts are waving around the space, shielded from the sun, you will radiate nearly all the heat and send it to cool cosmic background temperature.
From a distance of Sun to Earth, a space thermometer barely absorbs the sunlight and it counts as 45 degrees Fahrenheit. The average temperature of outer space near Earth is 283.32 Kelvin and in the empty interstellar space, it is just 3 Kelvin, which is considered as the coldest.
The matters in space concentrate into the astronomical bodies, the space between these objects are literally empty. So, there is no medium to heat up this empty space. Heat is transferable between atoms, but as there is no energy amid these long distanced atoms, there is no warm place in space.