What idea is stressed in the last two paragraphs? 1. There is room for further achievements in space exploration. 2. Asteroids are unique objects for scientific research. 3. Only smart administration can manage space programs. 4. International Space Station is the heaviest object in space.

What idea is stressed in the last two paragraphs? 1.  There is room for further achievements in space exploration. 2.  Asteroids are unique objects for scientific research. 3.  Only smart administration can manage space programs. 4.  International Space Station is the heaviest object in space.