Check out, To The Stars International Quarterly – July 2015 (pdf). It is a joint publication of several space activist organizations including
- National Space Society
- Moon Society
- Space Renaissance International
- Mars Foundation
- OpenLuna Foundation, Inc.
- Students for the Exploration and Development of Space (SEDS-USA)
Here is the cover page and table of contents of the 200 page issue:
Good info. Lucky me I reach on your website by accident, I bookmarked it.