Defense spending as a whole is north of $700 billion a year. But the Space launch market is obviously much smaller, but it is expected to increase at a pretty fast pace.

> The Global Space Launch Services Market size was estimated at USD 12.86 Billion in 2020 and expected to reach USD 14.92 Billion in 2021, at a Compound Annual Growth Rate (CAGR) 16.29% from 2020 to 2026 to reach USD 31.84 Billion by 2026.

https://www.yahoo.com/lifestyle/space-launch-services-market...