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The course in general is very interesting and anyone who's even slightly intrigued by Astronomy and the universe we live in will find it very satisfying. The video lectures were great, and supplementary materials were in abundance.

However, some of the material was quiet hard to understand, especially for non-native English speakers like me. I'd improve the accompanying subtitles for the video lectures (some of them were actually misleading).

Some of the lectures included animations, simulations and external footages that really helped understanding some of the complexed materials - more of these would have been great (they were indeed missing sometimes).

Also, the later subjects were more interesting than the first ones, and though I understand the importance of understanding the basics before diving into the "deep water", I'd make the first classes more brief (history of astronomy, the scientific method), and extend the later subjects (astrobiology, distant galaxies, the Solar System planets and moons, etc.)

Overall, I had really great time, and I definetely recommend this course to anyone :)

The course is very interesting. from week to week. It covers the history of science and introduce you to Galileo Galilei, Johannes Kepler, Copernicus and many famous scientists. The course also was not very intensive but focus on light engaging structure which are perfect for people who started having interested in Astronomy Field. The course also have flexible deadlines , thus you are not forced to commit it and can pick it back at anytime. The only bad thing that I could say is there are some instances the course focus too much on professor talking(which are mostly interesting) but I think it might be more engaging if the video display of images also played more roles. Other than that, the course was very great and I am really glad that I enrolled this course.

The course content, material, delivery, and (some) reference material are great. There is A LOT of progressively complex information to be absorbed and professor Impey does a great job as a guide through this journey. Sadly, links to some reference material are not up-to-date (notably, podcasts episodes). Assignments have a good balance of complexity and work well to reinforce knowledge.

I specially liked the last section where we delve into philosophical takes on our place in the universe and what we have learned and the concept and undertanding of life and wish it was expanded. By the same token, perhaps this course needs to be broken down intro intro, mid, and advanced level ones to be more effective.

El curso es muy bueno en general pero adolece de información astronómica actualizada, falta que agreguen los últimos avances de esta ciencia de al menos 4 años para acá, cosa que en estos tiempos implica un gran atraso. Asimismo los videos que incluyen algunas clases de prof. Impey son muy malos, con baja definición y calidad.The course is very good in general but it lacks up-to-date astronomical information, it is necessary to add the latest advances in this science from at least 4 years to now, which in these times implies a great delay. Also the videos that include some classes of prof. Impey are very bad, with low definition and quality.

This course covers all basic elements of astronomy and cosmology. The Professor is great and the lectures are very clear and effective. No math skills or previous knowledge of the topic is required.

An important limitation, however, is that much of the material is outdated. Some videos were recorded as far back as 2010! In the sciences everything changes fast, and a few years can make a big difference. I think the year the lectures were recorded should be indicated in the course’s info page, so that learners know this in advance.

The staff is great and the mentor always answers readily and kindly on forums.

The contents of the course are great and prof. Impey is a great communicator. The course is easy to follow, the final chapters on galaxies and cosmology are a bit more difficult but that is due to the nature of the subject and I applaud that the prof does not "dumb it down" or brushes over such difficult ans speculative subjects. I minor nuisance for me were the frequent songs and funny videos interspersed in the course content. It would have been better if they were separate from the main videos or otherwise could be easily skipped by people who don't have a lot of time. overall a great course!

While I did find the course very interesting and informational, I was under the impression that most of the information would be about up to date astronomy findings, but the professor often spoke of things that happened at least 7 years ago. He spoke of how exciting the mars curiosity rover landing would be and what information it might send back, but that happened in 2012, and since then the perseverance rover has been launched and Opportunity died. Apart from this I greatly enjoyed the course, and have been bombarding my parents with cool new astronomy facts I've learned.

The course is great, videos and material are excellent, professor and mentors are very helpful. The assignments grading scheme, therefore is a disaster. It is very frustrating to do an assignment and get bad grades from people who didn't had any effort to do it. They simply spam bad grades over the others, and when you see their submission is always plagiarized content from Wikipedia, Space.com, Forbes or any other website. Because of that I will not give 5 stars. It would be 5 if mentors or the professor evaluated the assignments.

This course was phenomenally interesting, starting out with the very birth of astronomy and following the science through its developments and discoveries into the future. It is certainly more than a casual introduction to the subject, and gets very deep into some quite confusing concepts, but with proper focus and attention it is as good a course as any for getting to grips with the whole of astronomy. Fantastic!

Course was excellent. Prof. was excellent. I am a retired nurse so I took the course because of my lifelong interest in astronomy, science and the unknown. My only complaint is that I could not complete the last quiz because I could not get the micro-observatory to work on my Mac OS. My husband is a computer engineer and he could not get it to work on his computer either. This was disappointing!

I've always been fascinated about space and astronomy and there are so many questions that come in my mind and at times there are certain questions that you never ask yourself because you have too little knowledge and this course has given me the answers to all my questions and has increased my curiosity about the the world out there and thus inspired me to learn even more about the universe.

Hello! I was fascinated by this course, I'm a Senior High School student learning from this course, with the use of Coursera. I actually like the learning methods wherein it has various video lessons to watch and gain knowledge as well as modules. Having an exercise materials such as quizzes and assignment really does helped me to understand furthermore the lessons. I LOVE THIS COURSE!

Interesting course, covering a broad range of subjects without going into too much detail. So, an exploration indeed.

Learned a lot, enjoyed the exercises. But also found the videos sometimes a bit boring (too much talking only, so jumped to the end), some materials were found to be outdated, also experienced some scoring issues in the exercises.

Overall, I can recommend this course.

Really enjoyable course. Fascinating subject matter.

Some course materials could do with being brought up to date with the latest developments.

But then the pace of progress is breathtaking. As a beginner, I have learned a great deal and will continue more in-depth learning via the many excellent internet facilities.

Thanks to Professor Impey and Arizona University.

There should be some improvement in the course , the course name is astronomy:exploring space & time so according to me the course should have included topics related to time-travel , 3d space, 4d space , einsteins theories . But besides that the professor was very knowledgeable and videos he included in his lecture were really interesting.

A very informative course for begineers. I personally find this course a very informative. This course provides me information about some areas of astronomy which i don't even know before. Moreover, this course increases my interest in Astrophysics. In the end, a big THANKS to professor Chris impey who taught it so well.

Pretty good, some of the units drag on a little but most of the content is very interesting and the instructional videos include very funny videos or videos from pop-culture, which makes some of them very entertaining. I feel like I have definitely broadened by knowledge by taking a chance on this comprehensive course.

The course is very good and I liked the prof. My only complaint is that the lectures themselves and the videos within them are becoming a bit dated. My knowledge in astronomy was not extensive coming into the course and I feel like now I have a better understanding of the expanse of the field.