All Subjects
      All Types

        Info

        Grades

        9-12

        Permitted Use

        Stream Only


        Part of Crash Course
        7 Favorites
        98 Views

        Cycles in the Sky | Crash Course Astronomy

        Take a look at the cyclical phenomena at work in the universe. Learn about the subtle changes in the sky that take place over time as the Earth circles the sun, following along the ecliptic. Learn how the tilt of the Earth's axis has a profound effect on the planet by creating the seasons. The Earth's axis is slowly moving as well, in a process called precession.

        Engage with the Crash Course community and subscribe to new videos on YouTube.

        Contributor:

        You must be logged in to use this feature

        Need an account?
        Register Now