For most of the sun, the temperature drops as you move away from the center. This makes sense, since it's nuclear fusion in the core that heats the sun. So you would expect the corona to be cooler ...

The result is cracked and separating shingles, warps, waves and bubbles in ... leather can be professionally re-dyed, oils in leather exposed to too much sun also dry out, causing cracks.

Here’s how it works. High-frequency magnetic waves surging through the sun may explain why the temperature of our star's atmosphere is 200 times hotter than its surface. The temperature of the ...

However, measurements in the 1990s using f-mode frequencies, or f-waves, found the Sun to actually be a few hundredths of a percent smaller than implied by these typical photospheric measurements.