After years of the free-fall of space and lighter- gravity planets, Catteni found it difficult to return to their heavy, depressing home world.

Nor did we draw a high gravity planet where a man can eat a full meal and expect to keep it down.

But this is a one and a half gravity planet.

If he hadn't had experience on heavy gravity planets, he doubted he'd have been able to move at all.

Who would want to live and toil on some forgotten light- gravity planet, wearing a mask, working under domes, driving pressurized vehicles, digging in alien soil?

Samians: Physically powerful, slow-thinking, block-like creatures with no appendages who live on a high gravity planet.

The runner had to be a descendant of the mutineers: he'd the build, if not the over developed musculature of someone raised on a heavy gravity planet.

But, as I'm sure you know, these people from the lighter gravity planets can sometimes move too slowly for their own good.

Infernoland seems to be built on a lower gravity planet than Earth.

They visit a high gravity planet they encounter many insect-like aliens who have adapted to 15 times Earth's gravity.