"Actually, there is no life on Mars except a human colony."

And so the sky here is full of lost human colonies.

Answer was only three hundred years old, as a human colony.

They existed nearly everywhere that human colonies had been built.

"How do you feel about becoming a lost human colony?"

They were asking him to circle another human colony, which he obviously didn't want to do.

This could be an important consideration when establishing the first human colony.

For the Cause is set in the future on a distant planet that has two human colonies.

They cannot tell us if or how a permanent human colony can be established on a different planet.

The children are not yet mature enough to be a major factor in the human colony.