Dark Matter

The video explores the humbling nature of cosmic discoveries, focusing on dark matter. Vera Rubin's observations of galaxy rotation curves revealed the presence of dark matter, a concept initially suggested by Fritz Zwicky. Despite skepticism, evidence for dark matter has grown, with gravitational lensing providing further proof. Dark matter, possibly composed of axions, plays a crucial role in the formation of cosmic structures. The video concludes by emphasizing the significance of dark matter in the universe.

What are axions and how are they related to dark matter?

What challenges do astronomers face in detecting dark matter?

How does dark matter affect the formation of large structures in the universe?

In what ways does dark matter influence the motion of galaxies within clusters?