Issue 35 of Principium, the quarterly publication of the Initiative and Institute for Interstellar Studies is now published.
Issue 35 | November 2021

- Interstellar Research Group Symposium 2021
- International Astronautical Congress 2021: The Interstellar Papers
- The downlink from swarming micro-probes
- News Features
- Nine pages of Interstellar News
- i4is Members’ Page
- Losing Access to Space – Are we building a fence around our planet? – A personal view