Learning Objective

In this lesson we will discuss the main components of the universe.

Learning Outcomes

By the end of this lesson you will be able to:

• Give a general overview of the universe.

• Compare the characteristics and distribution of normal matter, dark matter and dark energy.

• Describe the main astronomical bodies in the universe, including stars, planets, moons, asteroids and comets.

• Describe the main astronomical objects in the universe, including planetary systems, star systems, star clusters and galaxies.

• Describe the interstellar medium and intergalactic medium.

• Describe cosmic dust and nebulae.

(Image: Andrew Pontzen and Fabio Governato, Wikimedia Commons)