Astronomy in Hawaii under threat?

[Space Karen]

The sky is blue during the day because of light scattering, not lensing.

"If what you say is true, photographs taken on the dark side of the moon would have visible stars. While photos snapped on the light side would have none."

Now I think this is a troll. 

"People throughout history used bifocals, contact lenses and eyeglasses to make images sharper and more distinct."

Right, those bifocals, contact lenses, and eyeglasses are made out of the atmosphere. Give me a break; no one is this stupid.

Light scattering? That wouldn't explain color shifts which occur in the sky throughout the day. 

There are more recent photographs taken on the dark side of the moon which show no stars in the sky.

Its the shape of the lense that gives it its properties, not the material its made of. What is the shape of the atmosphere?