- Population of space Data source: J. McDowell, planet4589.org
- Human Spaceflight Missions, Astronauts, Rides Data source: J. McDowell, planet4589.org
- Extravehicular activity
Data source: J. McDowell, planet4589.org,
description and definitions.
Note that EVA (spacewalk) at this data defines as an activity carried out in vacuum conditions (ambient pressure of less than 50 mbar or 5 kPa) protected at most by a spacesuit.
For all manned spaceflights statistics related code see this directory