Due to a high volume of active users and service overload, we had to low down the quality of video streaming. Premium users remains with the highest video quality available. Sorry for the inconvinience it may cause. Donate to keep project running.
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A users guide to the cosmos from the big bang to galaxies, stars, planets and moons. Where did it all come from and how does it all fit together. A primer for anyone who has ever looked up at the night sky and wondered.