Memorial Day Sale

Tickets for the Space Studies Institute’s 50th anniversary conference, SSI 50: The Space Settlement Enterprise, are on sale at a special price for a limited time.

Order a conference ticket with meals in the next week and save $100 off the Regular Registration rate. Or order a conference ticket without meals and save $75 off the Regular Registration rate.

Just choose the Memorial Day Special when you register at

We urge you to act now, because tickets are going fast. We only have 200 meal tickets available, and one-quarter of those are already gone! All of our tickets are expected to sell out before September, so act now and save money.

SSI 50 Conference Update

Time is running out to buy tickets for the Space Studies Institute’s 50th anniversary conference at the special Early Bird rate. The special ends next week.

Planning for the conference, which takes place September 9-10 in Seattle, is coming along nicely. Our venue is the Museum of Flight, a world-class air and space museum. We have engaged McCormick & Schmick’s Seafood and Steaks to cater two gourmet luncheons for us, as well as afternoon snack breaks. Early ticket sales have been brisk, and response from invited speakers has been enthusiastic.

SSI 50 marks the kickoff for a new SSI project, the Space Settlement Enterprise. This multi-year project will reexamine the original High Frontier vision created by Professor Gerard O’Neill, bringing his ideas up to date with new technology, new discoveries, and new space ventures. This year’s conference will lay the groundwork that project, helping to determine the questions that need to be addressed. Our panel format is designed to allow for plenty of Q&A and audience interaction. There will be no passive lectures. We need your ideas.

Preliminary Schedule

Monday, Sept 9

8:00 On-site registration

9:00 Keynote and Welcome

9:30 “Habitats” — panel hosted by Dallas Bienhoff, founder, Cislunar Space Development Co.

11:30 Lunch

1:00 “Space Construction” — panel hosted by Joe Carroll, president, Tether Applications

3:00 Snack break

3:30 “Space Resources” — panel hosted by Prof. George Sowers, Colorado School of Mines

7:00 Possible Event Event TBA


Tuesday, Sept 10

8:00 On-site registration

9:00 Keynote

9:30 “Transportation and Logistics” — panel hosted by Henry Vanderbilt, founder, Space Access Society

11:30 Lunch

1:00 “Life Support and Public Health” — panel hosted by Dr. Lee Valentine, chairman, SSI

3:00 Snack break

3:30 “Economic Viability” — panel hosted by Edward Wright, senior researcher, SSI


Jeff Bezos on O’Neill Cylinders

Where does Jeff Bezos foresee putting space colonists? Inside O’Neill cylinders

“SpaceX’s Elon Musk wants to settle humans on Mars. Others talk about a Moon Village. But Seattle billionaire Jeff Bezos has a different kind of off-Earth home in mind when he talks about having millions of people living and working in space.

“His long-range vision focuses on a decades-old concept for huge artificial habitats that are best known today as O’Neill cylinders.”

— Alan Boyle

SSI 50: The Space Settlement Enterprise

Bernal Sphere

Update: Super Early Bird tickets are sold out! Early Bird tickets are still available. Act now to get the best price.

Update 2: Please note new dates, September 9-10

The Space Studies Institute (SSI) is pleased to announce the date and location for its 2019 conference. Make your plans now to attend SSI 50: The Space Settlement Enterprise September 9 and 10 July 15 and 16 at the renowned Museum of Flight in Seattle, Washington.

Tickets are on sale now at, with a limited number of Early Bird and Super Early Bird tickets at greatly discounted prices. As soon as those tickets sell out, prices will go up.

The conference is timed to coincide with the 50th anniversary of the Apollo 11 lunar mission, which launched from Kennedy Space Center on July 16, 1969.

2019 also marks the 50th anniversary of the “High Frontier” concept created by Princeton physics professor and SSI founder Gerard O’Neill. As NASA was preparing for the Moon landing, Professor O’Neill asked an intriguing question: “Is the surface of a planet the best place for an expanding technological civilization?”

After careful study and consideration, O’Neill came to a remarkable conclusion: It was possible to build large space habitats, each housing more than a million people, using materials readily available from the Moon or asteroids. A fleet of such habitats could house more people than are currently living on the surface of the Earth.

As a first step, O’Neill conceived a smaller habitat, called Island One, capable of housing 10,000 people. The residents of the Island One habitat could build solar power stations that would supply clean electrical power to the surface of the Earth.

Prof. O’Neill authored a best-selling book, The High Frontier: Human Colonies in Space, and founded the Space Studies Institute to promote and develop his High Frontier vision.

Now SSI is preparing for a dramatic reboot of Professor O’Neill’s research program. The SSI 50 conference marks the start of a multi-year effort to reevaluate the High Frontier vision in light of new technology and the emerging commercial space industry.

SSI 50: The Space Settlement Enterprise will be an exciting two-day event featuring some of the space industry’s top thinkers. Nestled alongside history-making exhibits, experts will seek to identify the technological and economic obstacles to space settlement. Panel discussions will cover six major areas:

  • Habitats and Facilities: What do we want to build?
  • Construction: How do we build it?
  • Resources: Where and how do we get the materials?
  • Transport: How do we get there?
  • Life in Space: How do we survive there?
  • Economics: How do we pay for it?

We have structured the event to allow plenty of time for questions and audience interaction. The questions developed at this conference will inform SSI’s research programs over the next few years.

In addition, we’ve arranged for two gourmet luncheons catered by McCormick and Schmick’s. These luncheons will provide a great opportunity for networking and informal discussion of the day’s topics. Luncheon tickets are limited. We strongly recommend that conference attendees take advantage of the luncheon option, but the museum has two excellent cafes that are available if luncheon tickets sell out.

We look forward to seeing you in Seattle.

Technology for Human Space Settlement