Alex Filippenko

@4AstroAlex

Astrophysicist at UC Berkeley and 2006 National Professor of the Year

San Francisco Bay Area Katılım Mart 2010

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Alex Filippenko@4AstroAlex·14 Eki

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Alex Filippenko@4AstroAlex·19 Eyl

Check out my latest AMA on Reddit to celebrate Astronomy Day! reddit.com/r/space/commen… #astronomyday

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Alex Filippenko@4AstroAlex·10 May

Conducting an AMA on Reddit now in the spirit of Astronomy Day! Ask me anything: reddit.com/r/IAmA/comment…

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themathlady@themathlady·15 Mar

@nascarlady51 I had a piece of cherry pie today in celebration of Pi Day-had pizza pie last night.

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