Is the Universe Expanding?

Описание: Is the universe expanding? About a hundred years ago astronomers made a discovery that helped us unravel the mystery of the history of the universe!

Annotations:
Heliocentrism    • How We Figured Out That Earth Goes Around ...  
Project MINERVA:    • Minerva and the New Hunt for Alien Worlds  
Dark Energy:    • Dark Energy  
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Sources:
http://www.nasa.gov/audience/foreduca...
https://cosmology.carnegiescience.edu...
https://www.cfa.harvard.edu/~dfabrica...
http://www.space.com/24073-how-big-is...
http://www.universetoday.com/40064/hu...

Images:
https://en.wikipedia.org/wiki/File:V....
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