An excellent course! Great lectures, wonderful supplementary materials, and an excellent professor with a fun sense of humor, which helped make the video lectures easy to follow.

Excellent, i'm a fan of astrophysics and astronomy, not a practicioner. The content was very interesting. Good job both that of the professor and Coursera/University of Arizona

I have been interested in astronomy for many years and the course has increased my interest in this fundamental subject. I thought the course was excellent and I learned a lot.

Chris Impey is one of the best instructors I have ever taken a course with. He has the ability to take complex ideas and make them accessible to everyone. Highly recommend it.

i have learned too much about Astronomy, this course is very clear, explained in a very easy way, I am so glad to participate, and I hope have a second part of this course.

Great course, Professor Impey does a wonderful job of explaining this topic and keeping it interesting. Highly recommend his parallel book on the same topic, "How It Began".

This is the best course I have done in Coursera. The use of animations, videos, resources, The occasional humor and the way the lecturer addressed each topic. Simply amazing!!

A very interesting course about the basic concepts of astronomy with lots of additional funny videos and slides. Thanks a lot to professor Impey and everybody who created it!

This is a very thorough and informative introduction to the field of astronomy, and contains a lot of practical information that everyone interested in the night sky can use.

FANTASTIC COURSE. As an old retired physics major and dentist it was a great review of the current state of knowledge about the universe and astronomy. Wonderful Course!

´É lindo poder ter acesso a um conteúdo tão rico em conhecimento. Eu amo astronomia, é interessante estar no meu país e assistir à aulas de uma Universidade tão exemplar !

Beautiful, gorgeous and fascinating, one of the best courses ever followed; rich in content and explained with elegant clarity. Thanks for making it available to anyone.

I really enjoyed this course the platform worked great.i found the professor to be great at explaining the subjects to be understood easier then I thought they would be

Great course! Presented in a way that is exciting and easy to follow. Perfect for those just begining in astronomy and a great refresher for those with more experience.

This has been a vastly enriching experience for me. Thanks to Prof. Impey, his team and Coursera for allowing knowledge and ideas to be expeirenced accross the world.

An excellent course produced by an excellent lecturer, Prof Chris Impey!

He covers the vast area of Astronomy in this comprehensive course, and he does it very well.

An amazing course! Fascinating and engaging, well-documented and illustrated, with original activities, and a challenging subject matter. Don't hesitate to enroll!

This is a great course that covers a lot of fascinating topics. Professor Impey does a great job presenting the material. Thanks a lot for the interesting course.

Very interesting course. You can learn plenty of new things, more that you might imagine, with very funny videos from time to time. I recommend it to everybody.

The professor has been very inspritional with great humor. Although the course does not go deep in detail, it gives a comprehensive picture about the subject.

I haven't quite finished the course yet, but so far it has been fascinating. Well done to the Coursera team and to Prof. Chris Impey, the course leader.

Wonderful course, after some time I will repeat.

Thank you very much Prof. Chris Impey, you have given me much insight.

We keep in touch, best regards, Bob

It was a bit long and maybe overstuffed, but it covers about every subject in modern day Astronomy form a layman's point of view. I enjoyed the course.

Many of the lectures were recorded years ago. But, the information is still great, and a little follow up research on the web will get you caught up.

This course is very rich of video material, and follow up with quizzes and assignments. Really recommended if you want to start exploring astronomy.