Astronomy Online Classes


We have 12 Online Classes for learning K-12 Astronomy from providers including Khan Academy, Big History Project, Princeton University, and University of Copenhagen. Find 13 more resources in subtopics including Astrobiology, Solar System, Space Stations, Black Holes, and Origins of the Universe.

See all Educational Online Classes


Free

Astronomy Crash Course


9th - College | Online class, Online video/YouTube

Welcome to the first episode of Crash Course Astronomy. Your host for this intergalactic adventure is the Bad Astronomer himself, Phil Plait. We begin with answering a question: “What is astronomy?”

Free
Paid add-ons

Astronomy: Exploring Time and Space


7th - College | Online class

This course is designed for anyone who is interested in learning more about modern astronomy. We will help you get up to date on the most recent astronomical discoveries while also providing...

Free
Paid add-ons

Confronting The Big Questions: Highlights of Modern Astronomy


9th - College | Online class

An introduction to modern astronomy’s most important questions. The four sections of the course are Planets and Life in The Universe; The Life of Stars; Galaxies and Their Environments; The History...

Free

Cosmology and astronomy


7th - College | Online class

The Earth is huge, but it is tiny compared to the Sun (which is super huge). But the Sun is tiny compared to the solar system which is tiny compared to the distance to the next star. Oh, did we...

Free
Paid add-ons

From the Big Bang to Dark Energy


High School - College | Online class

We have learned a lot recently about how the Universe evolved in 13.7 billion years since the Big Bang. More than 80% of matter in the Universe is mysterious Dark Matter, which made stars and...

Free
Paid add-ons

Imagining Other Earths


9th - College | Online class

Are we alone? This course introduces core concepts in astronomy, biology, and planetary science that enable the student to speculate scientifically about this profound question and invent their own...

$150
Paid add-ons

Introductory Astronomy (online)


High School | Online class

Why do stars twinkle? Is it possible to fall into a black hole? Will the sun ever stop shining? Since the first glimpse of the night sky, humans have been fascinated with the stars, planets, and...

Free

Origins - Formation of the Universe, Solar System, Earth and Life


College | Online class

The Origins course tracks the origin of all things – from the Big Bang to the origin of the Solar System and the Earth. The course follows the evolution of life on our planet through deep...

Free

Our Solar System and Earth


4th - College | Online class

Ever since the Big Bang, the Universe has been drifting and expanding. The birth and death of stars leave an aftermath of galaxies, planets, and even living organisms. Watch the Earth transform...

Free

Scale of the universe


7th - College | Online class

The Earth is huge, but it is tiny compared to the Sun (which is super huge). But the Sun is tiny compared to the solar system which is tiny compared to the distance to the next star. Oh, did we...

Free

Stars, black holes and galaxies


High School - College | Online class

Stars begin when material drifting in space condenses due to gravity to be dense enough for fusion to occur. Depending on the volume and make-up of this material, the star could then develop into...

Free

The Universe


4th - College | Online class

Where did everything come from? Where are we heading? Big History tells the story of the Universe starting from the Big Bang, the formation of stars, planets, life on Earth, modern civilization —...

Did we miss something?

Add your favorite resources to our directory for free!
Add Resource

See free Astronomy Online Classes