Exploring Astronomy: Our Universe and Beyond

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Exploring Astronomy: Our Universe

What do you already know about astronomy?

Learning Goal

At the end of the lesson you will be able to explain what astronomy studies, name the planets in our Solar System, describe what stars and galaxies are, and understand key milestones in space exploration.

What is Astronomy?

Astronomy is the science of studying the Universe. It looks at stars, planets, galaxies, and helps explain cosmic phenomena.

The Solar System

The Solar System includes the Sun, eight planets, moons, asteroids, and comets.

Planets of the Solar System

Inner Planets

Jupiter, Saturn, Uranus, Neptune

Outer Planets

Mercury, Venus, Earth, Mars

What is a Star?

A star is a huge ball of gas giving off light and heat. Our nearest star is the Sun.

Galaxies: Star Cities

A galaxy is a massive system of stars. Our galaxy, the Milky Way, contains billions of stars.

Exploring Space

Yuri Gagarin was the first astronaut. Modern telescopes and Mars missions help us learn more about space.

Let's Review!

How many planets are in the Solar System? What is the largest planet? Which galaxy is Earth in?

Conclusion: The Adventure Continues

Write down 3 things you learned in this lesson.

Write down 2 things you want to know more about.

Ask 1 question about something you haven't quite understood yet.