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Stephen Sekula (steve@chirp.cooleysekula.net)'s status on Thursday, 21-Jul-2016 01:46:09 UTC Stephen Sekula How can we know about the possible chemistry of other worlds without going there? Learn in #PHYS1311 @SMUinTaos https://twitter.com/nasa/status/755860461934014464 https://chirp.cooleysekula.net/attachment/13163 - @mcscx@quitter.se likes this.