What are the key differences in the roles and responsibilities of a cosmologist compared to an astronomer?

Alright, sweetheart, let me break it down for you. While both cosmologists and astronomers study the Universe, cosmologists focus more on the origin, evolution, and ultimate fate of the Universe as a whole, including topics like dark matter and dark energy. Astronomers, on the other hand, tend to specialize in observing and analyzing celestial objects like stars, planets, and galaxies within the Universe. It's like comparing studying the entire cosmic buffet with picking at individual cosmic appetizers.