Poster Session Guidelines 2021

Posters will be displayed in the Ventana Room all day Saturday, 25 September and Sunday, 26 September. All poster presenters are requested to be in the Ventana Room from 5:45pm to 7:00pm on Saturday afternoon to interact with attendees. There will be no Zoom access for the poster session; sorry.

We need to receive your poster by Friday afternoon, 24 September. Posters will be mounted on display boards with a maximum size of 48 inches wide x 36 inches high. Please bring your poster to the IRG registration desk in the Marriott on Friday. If you are shipping, they may be shipped rolled; foamcore mounting is not required. Ship to:

Tucson University Park Marriott

Attn: IRG / Chris Pedegana

880 E 2nd St

Tucson AZ 85719

(520) 792-4100

We are not requiring any particular format, template, or logo for your posters. Make the best use of the size to communicate your work. Remember that attendees will be standing 4-6 feet away; choose your text size accordingly! It’s better to show results and impact; details can be left for other media.

If you wish, we can arrange for local printing of your poster at the University of Arizona. We will charge your our actual cost (estimated to be $150), and would have to be paid in advance via PayPal or check. To take advantage of this service, please contact me directly. We would need to have your PDF file (max 3840×2880 pixels) by Wednesday, 15 September to guarantee that your poster will be printed in time.

If you wish to retain your poster after the symposium, please plan to remove it sometime on Sunday, 26 September, or make arrangements with us directly. Any posters left mounted that evening will be discarded.

We are very pleased to announce that the prestigious journal of the International Academy of Astronautics, Acta Astronautica, has agreed to publish a special section or special issue (depending upon the number of papers accepted) featuring selected papers from our symposium. We strongly encourage our accepted speakers and poster presentersto submit a paper for consideration by the journal, following the standard Acta Astronautica format ( Rather than submit directly to the journal, the papers should first be sent to Les Johnson (he will be editing the section/issue) no later than 1 October 2021. Publication is not guaranteed, but this is a special opportunity to have your work published in a peer-reviewed scientific journal.

Working Tracks 2021

Working tracks will meet during evening sessions Saturday and Sunday (please plan to attend both sessions of the same track) and will prepare a response to be presented at the plenary session on Monday.

Track 1: Ken Roy will lead a discussion of Daniel Deudney’s “Dark Skies.”

Track 2: What threshold of criteria does an exoplanet need to meet in order to be considered for a human settlement? What if the atmosphere is fine, but the gravity is too high? What if the gravity is right, but we have to live in domes? We’ll discuss tradeoffs.

There is no charge to participate in a working track, but it will require some advance reading. Registering for one of the working tracks lets us know how many people we expect to participate, which helps in room planning.

COVID-19 Update

The 7th Interstellar Symposium is being hosted by the University of Arizona in Tucson. Events will take place in university buildings as well as commercial buildings (such as the Marriott) nearby.

Section 15-1650.05 of the Arizona Revised Statutes prohibits public universities from requiring COVID-19 vaccination or from imposing mandatory COVID-19 testing based on vaccination status.

In accordance with the new Arizona statute, the University will continue to strongly encourage, but not require, that all members of the campus community be vaccinated.

13 August update: The University of Arizona is implementing a new policy to require face masks be worn in all indoor spaces where it is not possible to adequately and continuously maintain social distance. We will post more details as they become available.

Manuscript Guidelines 2021

We are very pleased to announce that the prestigious journal of the International Academy of Astronautics, Acta Astronautica, has agreed to publish a special section or special issue (depending upon the number of papers accepted) featuring selected papers from our symposium. We strongly encourage our accepted speakers and poster presenters to submit their papers for consideration by the journal, following the standard Acta Astronautica format ( Rather than submit directly to the journal, the papers should first be sent to Les Johnson via (he will be editing the section/issue) no later than 1 October 2021. Publication is not guaranteed, but this is a special opportunity to have your work published in a peer-reviewed scientific journal.

Submitting to Acta Astronautica is completely optional. If you choose not to do so, for the sake of consistency, we do require that all plenary speakers submit your paper for the IRG 2021 Proceedings using the Acta Astronautica format. Keynote speakers are not required to submit papers, but are welcome to. Poster presenters may submit a formal paper, and are required to submit their poster as a PDF.

To summarize:

Paper for
IRG Proceedings
Paper for
Acta Astronautica
Poster for
IRG Proceedings
Keynote speakersOptionalOptionalN/A
Plenary speakersRequiredOptionalN/A
Poster presentersOptionalOptionalRequired

In each case, all papers and/or posters should be emailed to by Friday, 1 October 2021. In your cover note, please let Les know if you’re interested in the Acta Astronautica opportunity.

Presentation Guidelines 2021

Presentation files must be received by IRG by Monday, 20 September. That allows us sufficient time to load all presentations onto a single computer for use in the plenary sessions. You can use email, Dropbox, Google Drive, or sending a thumb drive in the mail, but we have to have it by Monday the 20th. If you make changes to your file afterwards, we will do our best, but we don’t guarantee that those changes will make it onto the screen on the day of your talk.

Please do not plan to finish your slides on the airplane and bring us a thumb drive on the morning of your talk. Even if you did that in Huntsville. Even if you did that in Wichita. We won’t be able to support that this time.

Files received after the deadline will not be accepted. You’ll have to give your talk without visual aids. (Not recommended.)

Due to COVID19, some of our presenters will be appearing via Zoom. You will still need to send your presentation files to IRG by the deadline. We will be broadcasting those from Tucson, not from your computer.

You will need to submit your presentation in PowerPoint format. If you use Keynote, you probably feel that using PowerPoint is like typing with bricks taped to your hands. That’s fine; create your file in Keynote and export it to PowerPoint. If you feel there is an important reason why you must send us a PDF, talk to us first. If you want to use any other format… you’ll have to convince us (and our paid A/V technicians).

You will not be able to rely on a local Internet connection to play videos, etc. All media must be embedded within the PowerPoint file. Prove this on your own machine by disconnecting Ethernet, turning off Wi-Fi, and playing your presentation. If it doesn’t work, please fix it before sending it to us. We won’t be able to fix it on site.

All presentations should be in an 16:9 (widescreen) format. Please include “IRG 7th Interstellar Symposium – September 2021” on the header or footer of each slide. Remember that these slides will be viewed from a distance. Try displaying your slides on your smartphone held at arm’s length. Any text too small to read comfortably will be illegible to the audience. Save the detailed figures for the printed paper.

If you encrypt your file, it will not be presented.