Neil deGrasse Tyson Explains Future Space Travel Challenges
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Neil deGrasse Tyson talks about the challenges of space exploration and space travel. Throughout human history, humankind has shared an innate trait – the desire to explore. According to Neil deGrasse Tyson, the urge to explore is not the only driving factor that could take us beyond low-Earth orbit and into deep space. A large proportion of current research into space is involved in understanding how to keep humans alive. When a spacecraft built for humans ventures into deep space, it requires an array of features to keep it and a crew inside safe. Neil deGrasse Tyson also talks about "little" things that are important for space missions such as food and drinking water.

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Sources: "File:Neil deGrasse Tyson at Howard University September 28, 2010.jpg" by Bruce F Press is marked with CC BY 3.0.

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