Mars is called the "red planet" due to oxidation of iron on the surface., Mercury is the only planet in our solar system smaller than Mars. , Many books were written about Martians invading Earth. It was believed life was present due to observing what appeared to be rivers and canals full of water. , Opportunity was sent to Mars in 2004, only expected to "survive" 90 days. However it lasted nearly 15 years. , Opportunity did not sing happy birthday to itself every year. It "hummed" it once in 2015. , Martian soil is fertile. The atmosphere is too hostile for plants to grow out in the open. , Get out your notes and get ready for awesomeness!!! .

Mars Intro

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