Thunder only happens when it's raining
If you've ever lived in a tempestuous climate, you've no doubt experienced something called a dry thunderstorm. It happens when either no precipitation is produced in the storm or, much more commonly, the precipitation that does occur evaporates before it hits the ground, due to a very dry atmosphere. This type of precipitation is called virga, presumably to make meteorologists sound even more stupid.
You see, thunder occurs as a response to lightning, and lightning happens when the balance of electric charge in the atmosphere is disrupted, usually by particles of rain and ice. So there will almost always be rain involved at some point in the process, but if it's dry on the ground, you can hardly say it's raining, Stevie.
Sometimes the snow comes down in June
Sometimes the sun goes 'round the moon
The sun is really, really big.
"The radius of the sun is about 700,000 kilometers (435,000 miles)." In comparison, the distance between Earth and its moon is 384,400 kilometers, or 238,855 miles. It doesn't take a degree in physics to understand the problem here. Sure, sometimes the sun appears to obscure the moon, in cases such as a lunar eclipse, but it takes an Insane Clown Posse level of not understanding how things work to think that the sun is actually orbiting the moon. We won't even touch on the catastrophe it would be if the solar system were somehow knocked off its axis in such a way that the sun began revolving around planets (or their moons!) instead of the other way around.
Audiences didn't seem to notice or care either. The song spent five weeks at No. 1 on the Billboard Top 100 in 1992 and went on to be one of the biggest hits of Williams' career.
And that's why scientists aren't songwriters.