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Featured Videos for The Week of July 21, 2014

To feed your desire to learn something new every day, we've carefully curated a collection of fascinating videos for you to discover throughout the week. Curious about the possibility of alien life, the Rosetta Stone, the size of the sun and more? Start exploring.

Share the knowledge!

Share the knowledge!

Key Facts In This Video

  1. Compared to the rest of the stars in the Universe, our sun is relatively average in size. 00:13

  2. The H-R diagram is crucial in Astronomy for stellar comparisons. 00:19

  3. Our sun is a G2 star. 01:33

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