▁# 1 0 3 ) ▁ ▁Jan ▁Vern , ▁Inter plan et ary ▁Agent ▁( issue ▁# 1 0 0 , ▁# 1 0 2 ) ▁ ▁Ult ra ▁the ▁Multi - A li en ▁( issues ▁# 1 0 3 – 1 1 0 ). ▁ ▁Myst ery ▁In ▁Space ▁# 1 ▁featured ▁" 9 ▁World s ▁To ▁Con quer ", ▁the ▁first ▁ 1 0 - page ▁tale ▁of ▁the ▁Kn ights ▁of ▁the ▁Gal axy ▁by ▁Robert ▁Kan igh er ▁( under ▁the ▁name ▁Anthony ▁D ion ) ▁with ▁art ▁by ▁Car mine ▁Inf ant ino , ▁together ▁with ▁three ▁eight ▁or ▁ten - page ▁non - series ▁science ▁fiction ▁stories ▁by ▁Gard ner ▁Fox ▁and ▁John ▁Bro ome , ▁the ▁first ▁of ▁a ▁series ▁of ▁single ▁page ▁information ▁pieces ▁" St ars ▁and ▁their ▁leg ends " ▁and ▁a ▁two - page ▁text ▁article ▁" What ▁do ▁you ▁know ▁about ▁com ets ? "; ▁establish ing ▁a ▁format ▁that ▁would ▁last ▁for ▁some ▁years . ▁ ▁" Space ▁Tax i " ▁in ▁Myst ery ▁In ▁Space ▁# 2 1 ▁( August – Se ptember ▁ 1 9 5 4 ) ▁introduced ▁the ▁first ▁long - term ▁series ▁to ▁the ▁title ▁- ▁Space ▁C abb ie ▁( also ▁known ▁as ▁Space ▁Cab by ), ▁whose ▁stories ▁involved ▁taking ▁people ▁from ▁planet ▁to ▁planet ▁in ▁a ▁batter ed ▁space ▁tax i ▁he ▁called ▁" the ▁j al opy " ▁and ▁the ▁sc rap es ▁he ▁got ▁into ▁as ▁a ▁result ;