Question

cosmologists are scientists who study stars, galaxies, black holes, and other objects in the universe. in order to study the billions and billions of stars, cosmologists use highly advanced telescopes and create computer models to trace the stars motion. what is one type of limitation that requires cosmologists to use these telescopes? money time the size of the system ethical concerns

Explanation:

Cosmologists study vast celestial systems. The size of the universe (the system they study) is extremely large. Telescopes are used to observe distant stars and galaxies because it's impossible to directly study such a large - scale system up close. Money, time, and ethical concerns are not the main limitations related to the need for telescopes in this context.

Answer:

the size of the system