NASA ScienceCasts: Cementing Our Place in Space

Experiments have taken place aboard the International Space Station to study cement based concrete in microgravity. ISS Science: http://www.nasa.gov/iss-science NASA Science: http://science.nasa.gov/ Click here to see more videos: https://alugha.com/NASA

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ScienceCasts: Earth Day Meteor Shower

At the end of a day devoted to Earth, people can look to the heavens for a beautiful shower of Lyrid meteors. Visit http://science.nasa.gov/ for more. http://www.nasa.gov/content/earth-right-now/ Click here to see more videos: https://alugha.com/NASA