Demographics of Human Population in Space (1961-present)
personeachyear.substack.com
The latest topic I’ve been investigating is the history of human space travel, specifically, the number of humans over time, and what percentage of humanity that represents.
Demographics of Human Population in Space (1961-present)
Demographics of Human Population in Space…
Demographics of Human Population in Space (1961-present)
The latest topic I’ve been investigating is the history of human space travel, specifically, the number of humans over time, and what percentage of humanity that represents.