Yellow button

There is a mechanical hiss, and the door you fell in through slides open, to reveal: Yet Another Door. Somehow you missed this second door during the whole freak-out when you were getting shot at, while falling into and then accidentally stealing an alien space craft. This one has a larger transparent section, and through it you can see the whole of planet earth, blue and white and handsome, floating beneath you. The two of you cant help but can't help but goggle in awe at it for a while.

"Erm. Its getting smaller." you notice

"Yeah. That's unsettling."

Then you spot another, bigger red button installed in the wall next to the new door.

Do you press it, or

The black one.

The blue one.

The (smaller) red one. The one back on the control panel.