I've been working on "Ad Astra", a space opera campaign for Traveller. I thought I'd publish a bit of the background information... it'll be useful for potential players, and I relish feedback from my critical friends.

First up, Earth...

http://blog.firetree.net/2015/10/27/earth-ii/

To understand the "Ad Astra" universe, you need to understand how jump drives work...

http://blog.firetree.net/2014/11/18/jump-drives/

Procyon is the "last bastion of human freedom". Our heroes will be based here...

http://blog.firetree.net/2015/09/14/procyon-ii/

The remaining Core human worlds...

http://blog.firetree.net/2014/11/20/epsilon-eridani/

http://blog.firetree.net/2014/11/20/centauri/

http://blog.firetree.net/2014/11/21/dx-cancri/

http://blog.firetree.net/2014/11/21/lalande/

http://blog.firetree.net/2014/11/21/wolf-359/

The big bad! And a first glimpse of the Corridor. Esperanza is where humanity first met aliens...

http://blog.firetree.net/2014/11/22/esperanza/

Five wars were fought, over nearly four centuries, before the Corridor was finally won for humanity...

http://blog.firetree.net/2014/11/23/corridor-worlds/

The Xa Imperium. Humans and their allies have pushed this state back to about a third of its former size...

http://blog.firetree.net/2014/11/24/xa-imperium/

As requested by Matt Fitzgerald. A somewhat sketchy timeline for my new Ad Astra Traveller setting...

http://blog.firetree.net/2014/11/25/timeline/

The Long Republic is a human government, where the people usually live on the move, in gigantic "Caravan Ships".

The nomads have access to mysterious alien "grav" technology, that allows their ships to float without any known means of support...

http://blog.firetree.net/2014/11/26/long-republic/

That's the end of Ad Astra articles for the moment. I've got plenty of other stuff written down though, and some of it is suitable for players. So there may be more in the future.

I have very much enjoyed the discussion that the posts have generated. Thanks to all.