1. Scientists think it is possible to send humans on a ___ Mission__to Mars by the 2030s.
2. James Kirk is the captain of the ___Spaceship___ called Enterprise.
3. Jupite is the largest ___Planet_____ in the Solar System.Its diameter is more than 11 times the diameter of earth.
4.The astronaut wears a ____ Spacesuit_____ to protect him from the dangers of being outside in space.
5. Do you know that it takes only 88 Earth days for Mercury to ____Orbit ____ the Sun once ?
6. The biggest problem for humans to live in other planets is the lack of ____Oxygen_____ and water.
7. Since the early 1960's , dozens of spacecraft have been sent to _____Explore______ Mars.
8. NASA decied to ______Launch_____ a rocket from Cape Canaveral at the end of this year.
9. It's impossible for people to live on Venus because the _____Climate_______ there is unsuitable for human life.
10. They have found a planet that could _____Accommodate______ half of Earth's population.