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b'Earth may be the cradle of life, but our bodies are filled with materials cooked up billions of years ago in the scorching centers of stars. As Carl Sagan said, \\u201cWe are all stardust.\\u201d We came from space, and some say it is to space we will return.\\nDiscover an astronomer\\u2019s quest to track down remains of these ancient chemical kitchens. Plus, a scientist who says that it\\u2019s in our DNA to explore \\u2013 and not just the nearby worlds of the solar system, but perhaps far beyond.\\nBut would be still be human when we arrive? Hear what biological and cultural changes we might undergo in a multi-generational interstellar voyage.\\n Guests:\\n\\xa0\\u2022\\xa0\\xa0 Timothy Beers \\u2013 Astronomer, University of Notre Dame\\n\\u2022\\xa0\\xa0Chris Impey \\u2013 Astronomer, University of Arizona, author of Beyond: Our Future in Space \\n\\u2022\\xa0\\xa0Cameron Smith \\u2013 Archaeologist, Portland State University\\nLearn more about your ad choices. Visit megaphone.fm/adchoices'