Great introduction to astronomy. Clear explanations, good video content to enhance understanding and recall of the points being made, and good course structure(quizzes, writing assignments, and ability to get feed back in the forums). Also, the professor is available to answer astronomy questions in weekly video conferencing format.

Just fantastic. I enjoyed all of it and appreciated the range of topics, the inclusion of humour, the quizzes, writing assignments and activities were interesting and relevant. The opportunity to engage in current developments in Astronomy at the University of Arizona as a function of signing up for this course, is a wonderful bonus.

Even though I have had read plenty of material about Astronomy, the course presented it in a pleasent and informative way whoch allowed me to study more, wake my curiosity and pushed me to investigate beyond that. Chris is such a carismatic person and I was happy to take this course and get to know him and encourage me all way long.

This is the second course I have done with Professor Impey and have enjoyed both - very little maths.

The lectures are clear and with a light touch. Very accessible. I am a pensioner who left school at 15. How lucky I am to have this opportunity. Especially in lock-down. Thank-you so much.

I also enjoyed Professor Impey's novel.

A very interesting course. For me the most interesting topic was Week 11 - Astrobiology. Prof. Chris Impey does a fantastic job of explaining everything in a fun and interesting way.

Since the science related to this subject undergoes so much innovation/development each year, i felt that the videos could be updated more frequently.

An extraordinary course which generally attracts lots of space enthusiasts like me and develops the interest in astronomy to take it up as a career. Since its not easy to study these kinds of subjects thoroughly at bachelors level especially in countries like India, its really a boon for the people out there and across the globe.

Astronomy: Exploring Time and Space, is a fantastic course! It offers the most in-depth explanations with great diagrams and infographics related to astronomy and astrophysics. I would highly recommend this course for amateur astronomers and students who are interested in learning the nature of the solar system and the universe.

I thought the course went well beyond my expectations and provided me with not just the knowledge of Astronomy but a certain wisdom about it that I never would have imagined when I first signed up. I will look at the night sky differently and with more understanding than I ever have before. And in this way I want to learn more.

Excellent lectures. Fair quizzes. WELL worth the effort for a broad astronomy background.

I recommend this one as opposed to others (e.g. Confronting the Big Questions, which include ridiculous tests). Prof Impey's pace and quizzes are supportive and aid learning.

Also, Prof Impey has regular live Q&A which are excellent.

this is an excellent course ,i especially liked the final part on Astrobiology .Its bang up to date and well constructed . Had difficulty with getting images from the remote telescope .Should have better input for students to deal with problems by linking in with mentors or help chat lines. A thoroughly enjoyable experience .

Professor Impey covers an extensive subject using a clear and instigating language. The assignments and tasks proposed helps a lot the comprehension and make you search for more information.

One of the best online courses I have already had.

Congratulations to Professor Impey and all team that produced the available material.

This is the best course for those who are really interested in exploring space. You will be able to learn so many things about this universe including planets, stars, exoplanets, moons and my favourite topic black holes and galaxies. Thank you so much professor Chris Impey for explaining everything in space so beautifully.

I have done many online science courses and I think this is the best so far. I was familiar with some of the material but have learnt much more about astronomy and cosmology.

The standard of presentation is excellent, so much better than just transmitting someone writing on a board.

Many thanks to the University of Arizona.

I didn't quite know what I was signing up for when I stated this course. It goes into a lot of different aspects of astronomy that has given me a greater knowledge and understanding of our universe. While giving me the questions I need to explore. Chris Impey talks in a way you can understand and I will miss the lectures.

THIS COURSE WAS JUST SIMPLY AMAZING. IT GIVES YOU A BASIC INSIGHT OF ASTRONOMY WITHOUT GOING TOO MUCH DEEP YET WITH ALL RELEVANT INFORMATION. AND MOST IMPORTANTLY THE TEACHER WAS JUST BEYOND AMAZING. THE CONTENT WAS INTERESTING, THE VIDEOS WERE AMAZING AND TESTS AND QUIZZES WERE GREAT. I HAD SO MUCH FUN LEARNING IT ALL.

Excellent course for learning about the basics of astronomy. Amongst others it covers subjects as the history of astronomy, our sun and the solar system, comets, galaxies, quasars, pulsars and black holes. The course uses video's which clearly explain various topics with sheets and additional reading material provided.

I just wanna say WONDERFUL. Prof. Impey is a wonderful teacher. He teaches very complex subject very easily and without any mathematics. Those who are interested in this subject and are not so much good at physics,I wanna say them just enroll, It will make you understand.This course in best for beginners in Astronomy.

Excellent course, vast and up-to-date material, text videos and well-produced slides. The learning is intensified through scientific concepts and teaching strategies, using information and communication technologies, the material is produced entirely by professionals in the scientific and teaching field of Astronomy.

I am taking this course again after some time, now I have found it even more interesting. Prof. Impey is really a great communicator and he makes complicated and sometimes boring concepts into easier and funnier ones. The quality of the videos is very good. I think I will enjoy this course as much as I did before.

I've been in Coursera since 2010, and this is the first time I ever write a review for the course taken. So far this is the most outstanding, yet wide auditory oriented course. Highly recommend to everyone. Explaining super complex things by simple concepts is a talent. Professor is doing a great job!

Oleksii, MBA

It was an absolute pleasure doing this course! Very informative and understandable for hobby astronomers; but there is always the chance to dwelve deeper into topics and make it all the more challenging. Being able to buy or print out the textbook would be brilliant. THANK YOU VERY MUCH, PROFESSOR IMPEY & STAFF!

It was an amazing course! Thank you for all these days that I was spending home by learning new incredible things about our universe. All videos and texts were easy to understand and interesting to watch. Now I strongly decided, that astronomy will ever be part of my life.

Thank you, prof. Chris Impey and others!

I very much enjoyed the course and definitely would recommend to everyone who would like to learn about Astronomy, it's an extremely fascinating subject! Professor Chris Impey makes narrative interesting and entertaining, even if you are not familiar with the subject, you will understand what it is all about :)

This course covers a lot of interesting materials of astronomy, ranging from planets to galaxies, very suitable for beginners. Those who have trouble with maths don't have to worry, it's not part of this course. The length of video lectures are short, thus getting distracted during the lecture will not be easy.

This was the best course that I completed, It provided me with all sorts of answers that I was looking for, from a long period of time. All topics are covered beautifully by Sir Chris Impey. This is a very good course to quench your curious minds and get the answers and science behind everything in space-time.