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        Part of NOVA scienceNow
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        NOVA scienceNOW: Hunt for Alien Earths | Detecting Life on Other Planets

        This video from NOVA scienceNOW examines how scientists are investigating the possibility of finding life on other planets. The video focuses on the techniques used to analyze light and heat signals from faraway planets to determine their atmospheric composition. It also explains how scientists use an understanding of the requirements of life of Earth—past and present—to guide their search for extraterrestrial life.

        Visit the program page here.

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