That IS the question.

- Do we have the ability to measure the exact amount of heat arriving at the Earth from the Sun? 

Here on Earth, we often talk about light as being what we can see and heat as being what we can feel. But, really any wavelength of electromagnetic radiation can raise the temperature of something that absorbs it.

- If we want a lunar orbiting space station, couldn’t we just send the ISS there? 

Well we could, but whether it would work is another question. There’s a fundamental principle that things are built-for-purpose.

 

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