ESS1A - The Universe and its Stars

Paul Anderson discusses the universe, its stars, and galaxies, explaining the Big Bang theory and the universe's composition. He describes how telescopes help us understand the universe and outlines educational strategies for teaching astronomy at various school levels.

How do stars evolve over time, and what is the expected lifespan of our sun?

Discuss the importance of observing celestial bodies in lower elementary education.

What is the observable universe, and how does it relate to galaxies and stars?