"Space colony" is a misnomer. Nothing of value to bring there or bring back. No indigenous population. No life at all. That's not how actual colonies work. A Ma

"Space colony" is a misnomer. Nothing of value to bring there or bring back. No indigenous population. No life at all. That's not how actual colonies work. A Mars base would be dependent on Earth very likely forever. If Earth blows up, the Martians die a few weeks or months later.