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Dr. Grace Wolf-Chase

Dr. Grace Wolf-Chase appears in the following:

Please Explain: The Sun

Friday, November 21, 2008

The Sun makes up about 99% of the total mass of the Solar System. Find out what the sun is made of, how hot it is, and why humans couldn’t survive without it. Dr. Grace Wolf-Chase is an astronomer with Chicago’s Adler Planetarium and a senior research associate ...

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