The goal of the Parker Solar Probe mission is to investigate the mysteries of the sun's corona, its outer atmosphere. What has it learned so far?
NASA's Parker Solar Probe is solving long-standing mysteries about the sun. Here's what we've learned so far. : Read more
I appreciate you post present information but :
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Specifically, for decades, we've known that the visible surface of the sun, the photosphere, has a temperature of around a few thousand kelvins, but the corona itself is in the millions of kelvins.
It's like switching on a light bulb, and the bulb is warm to the touch but the air around it is a thousand times hotter. What gives? '''
Temperature felt as heat is not propagated by space , it is cold around the Sun as the Moon and as mountain tops . Light can only propagate in a medium to produce heat . Without a medium the temperature is zero because light disperses at c !
Now the Quantum wierdness here , if you put a thermometer near the Sun , the thermometer would burn up and measure a temperature but not because it is measuring the temperature of the space but because it is measuring the temperature of itself , interacting with the dense radiation nearer the Sun .