Manned Spaceflight Statistics
55 years of men and women in space
On this year’s anniversary of Yuri Gagarin’s pioneering orbit of the Earth, we publish bar charts showing manned spaceflight statistics over the first 55 years of space travel.
The three key indexes I have chosen are:
- Man-days spent in space on orbital flights per calendar year
- Number of launches to orbit per calendar year
- Number of astronaut seats to orbit per year.
It should be clear that no spacefaring civilisation worthy of the name can even begin to be constructed until all three charts show sustainable growth.