The idea is to keep us from getting to the planet surface.

His head came up above the turn and he saw the surface of the planet, just feet away.

He looked outside at the dead surface of the planet.

And suddenly they were back over the surface of the planet again.

That's no different than people have on the surface of the planet.

In the present day, human activity has had a significant impact on the surface of the planet.

She could make better speed down on the surface of the planet.

"He is not back from the surface of the planet."

I will be remaining on the planet surface several more hours.

"You mean it can take off from a planet surface?"