Below you can find the The first soviet spacecraft to land on it transmitted for 20 seconds; the first u.s. craft for 6 years Jeopardy Words Answer. The answer to The first soviet spacecraft to land on it transmitted for 20 seconds; the first u.s. craft for 6 years has 4 letters. This clue belongs to the The planets category and is part of Jeopardy Word Level 2556. If you scroll near the bottom you will find other clues and answers part of level 2556