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Imagine never being able to dream of landing on Mars or traveling to Saturn.
Not because it's impossible to get there, but because they didn't exist. Because Earth was the only planet in our solar system. What would the night sky look like? Where would Earth be located? And how would humanity evolve?

Watch more whatif scenarios:
Planet Earth:    • What If Earth Was in Fact Flat?  
The Cosmos:    • Video  
Technology:    • What If the Sahara Desert Was Covered...  
Your Body:    • What If You Were Born on a Space Stat...  
Humanity:    • What If You Were the Last Person on E...  


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What If is a minidocumentary web series that takes you on an epic journey through hypothetical worlds and possibilities. Join us on an imaginary adventure — grounded in scientific theory — through time, space and chance, as we ask what if some of the most fundamental aspects of our existence were different.