Galaxies, stars and planets
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Discover the wonders of the universe in this free course, Galaxies, stars and planets. Learn about the scale of the universe, orbits and gravity, the solar system, and more. Gain a deeper understanding of astronomical objects and their composition. By the end of this course, you’ll be able to appreciate the vastness of the universe, understand the diversity of objects within it, and even calculate the time it takes for light to reach Earth from the Sun. Start your cosmic journey today!
This free course, Galaxies, stars and planets, is a general introduction, including scale of the universe from the very large to the very small
Orbits and gravity
The Solar System
The Sun and other stars
Galaxies and the composition of astronomical objects.
Course learning outcomes
After studying this course, you should be able to:
Understand the scale of items within the Universe
Appreciate the wide variety of objects contained in the Universe
Understand the relative sizes of the planets within the Solar System
Calculate how long it takes for light to reach the Earth from the Sun.
