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What's Outer Space like?

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Weightlessness Vacuum Vision Thermal Environment Radiation
  01 Space-Extreme of cold and hot temperature (1)
02 Space-Extreme of cold and hot temperature (2)
03 Space-Extreme of cold and hot temperature (3)

02 Space-Extreme of cold and hot temperature (2)

The energy from the Sun, transferred by radiation, reaches the Earth, and the layers of air heats up to just the right temperature for us to live.

However in space, no heating or cooling by conduction or convection can occur. Thus, when the sunlight strikes an object, the object becomes hotter.

When the energy from the sun no longer strikes the object, it will stop emitting heat and will eventually cool down.

 

   
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