NASA ScienceCasts: Something for Every Sky Watcher

The July 27th night sky offers treats for sky watchers -- and listeners -- around the globe. Click here to see more videos: https://alugha.com/NASA

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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: http://science.nasa.gov/ International Space Station: http://www.nasa.gov/station Click here to see more videos: https://alugha.com/NASA