Below you can find the In 1958 caltech's jet propulsion lab launched this first u.s. satellite Jeopardy Words Answer. The answer to In 1958 caltech's jet propulsion lab launched this first u.s. satellite has 8 letters. This clue belongs to the Caltech category and is part of Jeopardy Word Level 1735. If you scroll near the bottom you will find other clues and answers part of level 1735