Free Online Astronomy Courses

Get free Astronomy courses online from the world’s leading universities.  You can download these audio & video courses straight to your computer or mp3 player. For more online courses, visit our complete collection, 1,700 Free Online Courses from Top Universities.

• Astrobiology and Space Exploration – Free iTunes Video – Free Online Video – Lynn Rothschild, Stanford
• Astronomy 101 – Free iTunes Video – Scott Miller, Mercedes Richards & Stephen Redman, Penn State
• Exploring Black Holes: General Relativity & Astrophysics – Free Online Video – Free iTunes Video – Course Info – Edmund Bertschinger, MIT
• From Chemistry to Life – Web Video – Dimitar D. Sasselov, World Science U/Harvard
• Frontiers and Controversies in Astrophysics – Free Online Video – Free iTunes Audio – Free iTunes Video – Course Materials – Charles Bailyn, Yale
• Hunting for Life in the Universe – Free Online Video – Free iTunes Video – James Bullock, UC Irvine
• Introduction to Astrophysics – Free Online Audio – Joshua Bloom, UC Berkeley
• Introduction to Cosmology – Free Online Video – James Bullock, UC Irvine
• Introduction to General Astronomy – Free Online Audio – Alex Filippenko, UC Berkeley
• Introduction to General Astronomy – Free Online Audio –  Joshua Bloom, UC Berkeley
• Introduction Planetary Science and Astronomy – Free Online Video – Bruce Betts, Planetary Society
• Introduction to Solar System Astronomy – Free iTunes Video – Richard Pogge, Ohio State
• Stars, Galaxies and the Universe – Free iTunes Audio – Richard Pogge, Ohio State
• Life in the Universe – Free Online Audio – Richard Pogge, Ohio State
• Survey of Astronomy – Free Online Video – Free iTunes Video – Becky Baker, Missouri State
• The Accelerating Universe – Free Online Video – Adam Riess, Johns Hopkins/World Science U
• The Planets (Christmas Lectures for Kids) – Free Online Lectures – Carl Sagan, Royal Institution

For a complete list of online courses, please visit our complete collection, 1,700 Free Online Courses from Top Universities.

For a list of online certificate programs, visit 200 Online Certificate & Microcredential Programs from Leading Universities & Companies, which features programs from our partners Coursera, Udacity, FutureLearn and edX.

And if you’re interested in Online Mini-Masters and Master’s Degrees programs from universities, see our collection: Online Degrees & Mini Degrees: Explore Masters, Mini Masters, Bachelors & Mini Bachelors from Top Universities.