Find out more about The Open University's Natural Sciences courses and qualifications
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60 Second Adventures in Astronomy
Days that last two years, space microbes bringing life and a moon which always shows its best side. Join us for a series of quick space adventures.
The size of the universe
Professor Russell Stannard investigates what is beyond the observable universe and explores claims that the universe might close back on itself.
60 Second Adventures in Astronomy: The Big Bang
Discover how scientists have calculated the exact volume of the noise created at the birth of the Universe with this video
Study a free course
Galaxies, stars and planets
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.
An introduction to exoplanets
This free course, An introduction to exoplanets, introduces our galaxy's population of planets, and some of their many surprises. It explains the methods used by astronomers to study exoplanets, and provides a general introduction to the methods of scientific inquiry. The course culminates in discussion of life elsewhere in our Galaxy.
Astronomy with an online telescope
This free course shows you how to navigate the night sky, and introduces the wide variety of objects it contains. You will develop a hands-on understanding of telescopic observations using the Open University’s own robotic telescope facility COAST sited on the island of Tenerife. Supported by your own measurements we illustrate how stars...
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