Share Word Search Breakthroughs in Space Travel To create your word search for "Breakthroughs in Space Travel", first select the words you want to use. Choose up to twenty words for your game by clicking on a suggested word or enter your own by typing over an existing word. Suggestions for your word search; click to add. WEIGHTLESSNESS FASCINATING GRACEFULLY ADVENTURE EXCITING SIDEBARS GREATEST PLANNING CHANGES SCIENCE ROCKETS EFFECTS MISSION MONITOR TRAVEL HUMANS PHOTOS PEOPLE LONGER FLESH EARTH WORLD LEARN FOCUS SPACE MARS LAND ROAR WIL How do you want the words displayed in the game? Forward Down Diagonal Backward Puzzle Title