Observers need technologies to examine distant objects. Our local conditions are part of a much larger scale environment. Stars are many light years apart. Solar Systems are tiny parts of Galaxies. Our eyes cannot see very far into space.
Planets have fragile environments.
Locate images and data on the Web. Create maps and models of various portions of the observable Universe, to scale, on various scales. Address a futuristic postcard from an imaginary world in a distant Universe, to your current home. Model the movements of various objects relative to Earth, investigate why we see what we see in the sky. Compare what you can see using various instruments and technologies.