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Jeff Goldstein (doctorjeff) on Twitter

Jeff Goldstein (doctorjeff) on Twitter

twitter.com/doctorjeff

by drewroman

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by drewroman

Created 9/18/09

Astrophysicist, educator, writer, national program director, w cool approach to earth & space science education. See Blog on the Universe! http://blogontheuniverse.org

twitter, doctorjeff