Make the questions indirect. start with "they " 1 has anybody landed on mars? 2 is there life on venus? 3 willl people live on the moon some day? 4 do astronauts often visit space flight control center? 5 are there any aliens out there?

1 They ask if anybody has landed on Mars

2 They ask if there is life on Venus

3 They ask if people will live on the Moon some day

4 They ask if astronauts often visit Space Flight Control center

5 They ask if there are any aliens out there