A helpful course to reacquaint myself with astronomy and cosmology. I especially enjoyed the citizen science components of the course.

Needs to be updated; other than that, a great starting point to learn astronomy

This course help me to learn many interesting thing. And sir was fabulous in teaching .And all material and stuff including videos and photos make learning very easy. Fully satisfied by the course

Muy interesante y clarificador. Muchas gracias profesor

This course is bad!

I had come upto week 4. While Chris Impey is knowledgeable and good, the course structure is very poor and leaves a lot to be desired. I would venture to make some suggestions:

a. Restrict each video to a max of 7 minutes. More than that makes one sleepy.

b. Reduce the number of videos in each module to a max of say 6.

c. Instead of having Chris expound it like an audio reading, please include some slides, pictures,tables so that the matter to be learnt becomes self evident and Chris doesn't have to speak so much. A good example is the Coursera "The Global Financial Crisis", which I am also doing currently.

d. If you feel all the material in this course has to be studied, then to achieve the objectives in (a) and (b) above, divide this course into two parts, Astronomy: Exploring Time and Space - part I & II.

e. The written assignments are very simple and do not require any mental resources other than memory. Can you make the questions more challenging? For example, in Telescopes (Assignment 2), can you not ask a question like "In addition to Atacama, Chile, using Google earth, which other parts of the globe may be suitable for installation of ground based telescopes?" or "To obviate the blurring effect of the atmosphere, discuss the possibility of high altitude balloon based telescopes?" or "What do you feel about the fact that since today's mobile phones have high computing ability, their components can be used to make a low-cost space based interferometric telescopes?"

Kudos to Chris and his team! On the whole, knowledge wise, this is a good course.

Curso incrível. Pude compreender desde conceitos básicos em física e metodologia em ciência pra poder facilitar o entendimento de conceitos mais amplos e o estudo de objetos astronômicos como formação de sistemas solares, galáxias, o próprio universo e mesmo outras áreas como biologia e suas possibilidades.

Astonishing course. It taught me since basic concepts in physics and scientific method so it could facilitate the understanding of bigger concepts and the study of astronomical objects as the formation of solar systems, galaxies, the universe and even other subjects as biology and its possibilities

Extraordinary course covering all the basics of astronomy from it’s history to current day, and future exploration. This course has invigorated my enthusiasm for astronomy and the universe and provided me with a good foundational knowledge of the cosmos. Now whenever I see an article about astronomy I know what they’re talking about!

On a side note - the english subtitles could use some work. I liked watching the videos with subtitles but found often that there was a mismatch between what was said and what was written.

You may end up with more questions than answers, but hey, welcome to the Universe. This course is awesome and will nurture your hunger for astronomical understanding, bringing you right up to the cliff's edge of our knowledge as a species. It's terrifying and exhilarating and a mental roller coaster rich in information that would happily sit on my shelf next to the Cosmos series.

This Online course became the KEY FACTOR IN choosing between Stony Brook University and University of Arizona. Not just my love for Astronomy skyrocketed but also the stuffs I learned were really helpful in buying a telescope, impressing my friends with the constellation and detection of planets in the sky and going a little ahead from my highschool courses to my college life

Not only this course took me on a voyage of the universe but with that, we have explored so many different subjects entangled with this very course itself. We have learned physics like never before and exploited the science from it's very core. Not to mention the history of astronomy, the world, the galaxy and the universe and the philosophical message as well. best course!!

Shame editing was poorly done. Whoever did it thought that it must be waste of viewers time to wait until Chris takes breath for next sentence. Not only that we had no time for recollection thoughts, it also makes his head constantly jerking. Very unnatural and unpleasant experience. Other than that course is highly recommended. Chris is 5 star guy.

An excellent course with a broad coverage of topics presented at a relatively sophisticated conceptual level but still easy to understand and requiring little math. A great starting point for getting a comprehensive overview of astronomy at its current stage of development with insights into future directions.

Astronomy: Exploring Time and Space opened a whole new world of the excting field of Astronomy for me. Even a person with no prior knowledge can learn the basics of Astronomy here. Dr. Chris Impey has presented a wonderfully lucid and exhaustive narrative of the curious cosmos through this course.

This course gives a deep overview of astronomy in particular and all things science in general, in a was anyone can understand it with more or less effort depending on their scientific background. I have deeplyenjoyed this course and all the knowledge it has given me!

Thanks to Prof. Impey and the team, and to everyone else on the course that took part in the peer grading. This was a very enjoyable course and provided a good overview of key astronomical concepts and theories. I'm now planning to move on to further study.

This course gives insight to basic of astronomy, astrophysics and cosmology and help us to understand the universe as we know today. It increases our interest in the subject due to which studying the universe becomes our life-long learning goal.

I've had amazing journey in learning much about astronomy. The course content was amazing, the teacher and mentor were very helpful and answered each and every query. There is much more to learn from the Discussion Forums.

This is a very interesting course, without any math. I have learned a lot about basic astronomy from Chris Impey and the team. I am very thankful for this course and am looking forward to start an intermediate course.

This was truly an amazing course, I feel so good that I completed it on schedule. The contents were so detailed and awesome and the lectures and videos were excellent. I feel so happy to have completed this course !

brilliant, incredible, amazing, show stopping, spectacular, never the same, totally unique, completely not ever been done before In summary, take the course, you shall not have even the slightest hint of regret

I really enjoyed working through the modules of this course. The material was interesting and enlightening. The self-paced format worked well for me and I will look for similar courses going forward.

An excellent course, I really enjoyed it. I suggest anyone even mildly interested in astronomy take it, whether you're a 10th grader or a college student. Fantastic job by Professor Impey.

The course presentation and the resources available to students were fantastic. It was a great learning experience and I congratulate Chris Impey and his team on doing such a great job.

The best course for any beginner, especially the interest with which Prof. Impey teaches is a delight.

Thank you Prof. Impey for conducting this course. I feel blessed to be a part of it.

Studying astronomy is my life's dream since childhood, and this dream came true with Studying this course.

Iam very grateful towards Coursera and University of Arizona.

Ali hasan naser