Video of the Week - Mars, Four Billion Years Ago?
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We are all familiar with the rocky, red surface of present day Mars - After all, that is why it is nicknamed the 'Red Planet'. And while It's definitely not a place most of us would want to live on in its present state, what if it had been filled with huge lakes, lush green fields and giant cliffs? Just like . . . Earth?
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지금 학습 시작하기댓글 338개
- Chris약 10년This is interesting and soooooooooo coooooooool
- cool dude10년 이상i love astronomy its awesome and ava mars was made long before earth
- KO.10년 이상so do i :-)
- A.O.10년 이상astronomy is awesome
- oooh gta510년 이상i love astronomy
- really ava10년 이상mars was made waaaaaaaaaaaaaaaaaay before earth
- really ava10년 이상earth was made 6,000 years ago not mars
- omg bleh!!!10년 이상TOTALY AWESOME!!!!!!!!!!!
- omg omg!!!10년 이상woah
- omg omg!!!10년 이상really ava really