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YouTube is a place to discover, watch, upload and share videos.

A different astronomy and space science related image is featured each day, along with a brief explanation.

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Facebook is a social utility that connects people with friends and others who work, study and live around them. People use Facebook to keep up with fr...

Change.org is the leading site for social change, providing daily news and information about important social issues and empowering people to take act...

Vimeo is a respectful community of creative people who are passionate about sharing the videos they make. We provide the best tools and highest qualit...