Do Aliens Exist? | We Asked a NASA Scientist

Do aliens exist? Extraterrestrial life has never been discovered. However, that doesn’t mean it doesn’t exist. And at NASA, astrobiologists like Dr. Lindsay Hays are trying to answer one of the most profound questions ever: Is there life beyond Earth? Explore more: https://astrobiology.nasa.gov/

Producer: Scott Bednar
Producer/Editor: Jessica Wilde #Universe
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