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Learn Astronomy, earn certificates with free online courses from Harvard, Stanford, MIT, University of Pennsylvania and other top universities around the world. Read reviews to decide if a class is right for you.
Learn about the atmospheric chemistry of planets and celestial bodies and explore the possibility of finding life beyond Earth.
Explore the science of our solar system, from Mars to habitability beyond, in this advanced course by the California Institute of Technology.
Discover the origins of life and explore the search for extraterrestrial life in this 5-week course from the University of Edinburgh.
Explore the intersection of astronomy, biology, and geology in this 15-week Harvard course, delving into the existence of life beyond Earth and the evolution of life on our planet.
To look for evidence of life on other planets, we have to adapt what we know about chemistry on Earth to aid our search. Astronomer Dimitar Sasselov explains how we can use what we already know to search for alien life in this Master Class.
Theoretical physicist Andrei Linde was responsible for proposing the ideas of an inflationary multiverse and eternal inflation. In this Master Class, Linde discusses the evolution of these ideas over the past decades and what the future of cosmology hold…
Breakthrough Prize winner Andrew Strominger and string theorist Cumrun Vafa rediscovered the elusive quantity of black hole entropy in a groundbreaking calculation. Join Professor Strominger for an overview of how string theory has allowed us to understa…
Explore the art and science of navigation, from ancient techniques to modern GPS, in this 1-week course by Harvard University. Learn how longitude measurement shaped history.
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 support at an introductory level for those who have no backgrou…
Course covers the basic principles of Einstein's general theory of relativity, differential geometry, experimental tests of general relativity, black holes, and cosmology.
The first part of the course deals with the classical cosmology, and later part with modern particle physics and its recent impact on cosmology.
Explore the mysteries of the universe, from the Big Bang to Dark Energy, in this 4-week course offered by the University of Tokyo.
Breakthrough Prize and Kavli Prize Laureate, Alan Guth is renowned for his discovery of inflationary cosmology, which for decades has been the dominant paradigm for the origin of the universe.
Explore the greatest unsolved mysteries of the universe in this 9-week course by Australian National University. Dive into modern astrophysics and gain an up-to-date understanding of current research.
Max Tegmark, cosmologist and Professor of Physics at MIT, delivers a comprehensive look at the study of our universe, examining both the origin of our cosmos and the infinite questions waiting to be answered.