Conditionals type 2 and 3

If I were an astronaut, ... .

If she had a telescope, ... .

If we discovered alien life, ... .

If we discovered alien life, ... .

If they had launched the rocket earlier, ... .

If she had become an astronomer, she might have ... .

If I had known about the eclipse, I would have ... it.

If he had studied more, he would have ... .