The ethics of colonizing other planets. Some think it’s wrong.

The other day, we noted that NASA has been spending money on the question of how world religions would view the discovery of life on other planets.

(Meanwhile, Stephen Hawking insists that we must colonize other planets to avoid extinction (he gives us 1000 years) and that world government is needed to stop technology destroying us, which will sound to most people like a choice of methods of execution.