One of my favorite places to burn time. There's a lot of planned future out there, like probes reaching distant places or projects moving into motion. Then there's a lot of speculative future, like species going extinct and expectation for human progress. This site mixes those with some articles as references. The farther into the future it gets, the more wacky and speculative it gets.
I don't think this is updated anymore, but it was a source of a collective of interesting internet finds back in the day.
If you are a fan of Don't Hug Me I'm Scared, then here is the next thing to enjoy.