I will be speaking at the August 23-26 Mars Society Conference at the Pasadena Convention Center.   This

Occasionally, I bump into people who are both interesting and who are interested some of the stuff I’ve

The future fleet of over a thousand satellites seems to be on track.  The two prototype satellites in

SpaceX president Gwynne Shotwell recently did a TED talk that included a slide showing three designs

A brief note.  I’m dropping Google Ads from my web site for the foreseeable future.  ...

Next Big Future has produced a number of articles recently on breakthrough propulsion.  Here is

There has been much said of the recent budget proposal, that zeros out funding for the International

Lots of small updates. I've added a Patreon account so that people interested in this site can help

Video of my talks at UC Irvine for the Mars Society are now available on YouTube.  The slides

Elon Musk recently did a Reddit Q&A with members (Ask Me Anything).   This mostly focuses on details