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astrobotany

British  
/ ˌæstrəʊˈbɒtənɪ /

noun

  1. the branch of botany that investigates the possibility that plants grow on other planets

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

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And astrobotany, which will be needed to supply space settlements with fresh food, could eventually grow crops and send them back to Earth.

From New York Times

“All of human exploration has been driven by the ability to keep crews fed,” says Gil Cauthorn, an Osaka, Japan–based researcher at the Astrobotany International Research Initiative.

From Scientific American

They hadn’t approved of me getting a degree in agriculture, then getting further degrees in astrobiology and astrobotany, then earning my place conducting research and experiments for the Chinese National Space Administration.

From Slate