Alex Filippenko

@4AstroAlex

Astrophysicist at UC Berkeley and 2006 National Professor of the Year

San Francisco Bay Area

Joined March 2010

0 Following

2K Followers

5 Posts

Alex Filippenko @4AstroAlex

over 9 years ago

4AstroAlex's tweet photo. https://t.co/dfaBnAXY8N

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Alex Filippenko @4AstroAlex

over 10 years ago

Check out my latest AMA on Reddit to celebrate Astronomy Day! https://t.co/ekw92hf2i7 #astronomyday

4AstroAlex's tweet photo. Check out my latest AMA on Reddit to celebrate Astronomy Day!
https://t.co/ekw92hf2i7 #astronomyday http://t.co/wyOmYyaZo0

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Alex Filippenko @4AstroAlex

about 12 years ago

Conducting an AMA on Reddit now in the spirit of Astronomy Day! Ask me anything: http://t.co/c7Qer6DS8H

4AstroAlex's tweet photo. Conducting an AMA on Reddit now in the spirit of Astronomy Day! Ask me anything: http://t.co/c7Qer6DS8H http://t.co/sfdNMEL0Us

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4AstroAlex retweeted

themathlady @themathlady

about 16 years ago

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

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Who to follow

El Policía CDMX

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Defender Policías de altos mandos;preventivos ,auxiliares y Bancarios en la CDMX exhibiremos altos mandos y corrupción dentro de la SSC-CDMX EMERGENCIAS AL 911

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@ProfEmilyOster

Data-Driven Pregnancy and Parenting Economist @BrownUniversity Author #ExpectingBetter, #Cribsheet, #FamilyFirm, #TheUnexpected CEO of https://t.co/Q4hHIERBD5 👇

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Executive Editor, @scroll_in. Could not choose between art, academia and activism. Became a journalist. Email: [email protected]

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