Visit http://ilectureonline.com for more math and science lectures!

To donate:
http://www.ilectureonline.com/donate
https://www.patreon.com/user?u=3236071

We will learn why landing on Mars is so challenging…11 failed, 1 partial successful, 9 sucessful.

Previous video in this series can be seen at:
https://youtu.be/TwkWzlLYBHk
Next video in this series can be seen at:
https://youtu.be/EyVYWbTxBYM