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Imagining Other Earths, Princeton University

4.8
Оценки: 271
Рецензии: 66

Об этом курсе

Are we alone? This course introduces core concepts in astronomy, biology, and planetary science that enable the student to speculate scientifically about this profound question and invent their own solar systems. All the features of this course are available for free. It does not offer a certificate upon completion....
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Рецензии: 66

автор: gaocen

Jun 25, 2018

super cool and knowledgeable. review again.

автор: Joy Smith

May 15, 2018

Thorough, lengthy, weeks-long grounding in the subject. Only problem is stupid peer review.

автор: Raul Рауль

Apr 06, 2018

Something worthy.

автор: luis juri

Mar 09, 2018

E

автор: Serge Danan

Mar 07, 2018

Very clear, very interesting

автор: derek j scarpelli

Feb 27, 2018

https://www.nasa.gov/image-feature/jpl/pia22240/splitting-slope-streaks

Sorry Professor David>>>your presentation on the 'dark streaks' on Mars' crater sides is outdated. I personally have studied these some 10 years ago having followed the 3 rovers and the lander 10 years ago and watched the water sublimate from the Phoenix digs, at that point I knew 'instinctively' that the dark lines were sand. Please see NASA link above.

I can not continue your course for the obvious reason that some other data will be outdated.

However, I truly have enjoyed your presentation method and if and when your updates to other lectures are complete I will endeavor to complete the lecture course.

Thank you.

yt

derek scarpelli

Canada

автор: 叶斌龙

Feb 14, 2018

非常好的课程

автор: Aidan T.

Jan 07, 2018

i love it and iam 10 years old

автор: Richard Kouzes

Jan 03, 2018

very interesting course

автор: Justin Crevier

Sep 27, 2017

A fascinating, excellent, and well-taught course.