Comment by SJC_Hacker

There could be life on other planets. It could even be (somewhat) suitable for humans to live without a full space suit

But I find it unlikely the exact combination of factors, of which there are dozens or more, will be present such that it’s any place anyone actually wants to settle. Like what if the planet was much like Earth except the gravity was 1.2G. Or the atmosphere was only 500 mb, or surface temp was just barely above freezing. That would be deal breaker for just about everyone