NASA ScienceCasts: Unlocking the Origins of the Universe

Click here to see more videos: AMS-02 is helping scientists investigate many fundamental physics questions from its place on the space station. Astronauts are conducting a series of spacewalks to perform repairs and extend the life of the observatory. Space Station Research: NASA Science:

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ScienceCasts: The Power of Light

A new NASA study is investigating how different light spectra can be used to effect astronauts' sleep, or lack of sleep. NASA Science: International Space Station: Click here to see more videos: