lˈɑːɹsən wʌz ˈɔːlsoʊ ɐ mˈɛmbɚɹ ʌvðə sɪvˈɪliən spˈeɪs ˈiː ˈɛksploːɹˈeɪʃən tˈiːm sˌiːˌɛsˌɛkstˈiː, wˌɪtʃ ɪn tˈuː θˈaʊzənd fˈoːɹ bɪkˌeɪm ðə fˈɜːst ˈæmətʃɚɹ ˌɔːɹɡɐnᵻzˈeɪʃən tə lˈɑːntʃ ɐ sʌbˈoːɹbɪɾəl ɹˈɑːkɪt ˌɪntʊ spˈeɪs.
Larson was also a member of the Civilian Space eXploration Team (CSXT), which in 2004 became the first amateur organization to launch a (suborbital) rocket into space.