Exercise 8 - Part 1
For questions 1-8, think of the best word to complete each sentence.
Humanity has always been (1) by the stars. Since the first moon landing, space exploration has (2) rapidly. Private companies are now (3) heavily in space travel. The goal is to (4) send humans to Mars. This mission (5) many technical and physical challenges. Astronauts must (6) years of intense training. Despite the risks, the potential for scientific (7) is enormous. Such missions could (8) answers to fundamental questions about our origin in the universe.