Although generally reserved for professional space travelers, the term is sometimes applied to anyone who travels into space, including scientists, politicians, journalists, and tourists.
ɔːlðˈoʊ dʒˈɛnɚɹəli ɹɪzˈɜːvd fɔːɹ pɹəfˈɛʃənəl spˈeɪs tɹˈævəlɚz, ðə tˈɜːm ɪz sˈʌmtaɪmz ɐplˈaɪd tʊ ˈɛnɪwˌʌn hˌuː tɹˈævəlz ˌɪntʊ spˈeɪs, ɪŋklˈuːdɪŋ sˈaɪəntɪsts, pˌɑːlɪtˈɪʃənz, dʒˈɜːnəlˌɪsts, ænd tˈʊɹɹɪsts.