A Blonde Astronaut

There was a blonde, a red head, and a brunette and they were all up in space. Each girl tried thinking up ways to be better then the other two...

The red head said:

- I am going to be the first woman to land on mars.

The brunette said:

- I can beat that, I'll be the first woman to land on saturn.

The blonde said:

- I'll beat both of you, I'll be the first woman to land on the sun.

- How are you going to do that - the other two asked.

- Simple - said the blonde.

- I'll go at night!