Coverage of the space industry concentrates on the dramatic – crewed flight, tourism, plans for the Moon and Mars. The revenue does not. The overwhelming majority of commercial space income is satellites doing unglamorous work.
Where the money is
Communications. Broadband, broadcast, navigation signals, and the ground equipment that uses them. This has been the largest segment for decades and the low-orbit constellations have grown it further.
Earth observation. Imagery sold to agriculture, insurance, shipping, government and finance. A market that has expanded as resolution improved and revisit times shortened.
Launch, which grew substantially as costs fell, and which serves the two categories above.
What is small
Tourism, which is a handful of flights a year at prices that limit it to the very wealthy. Manufacturing in orbit, which is research-stage. Resource extraction, which does not exist commercially.
What government pays for
Most of the exploration – crewed programmes, planetary science, the Moon initiatives. That is public spending with commercial contractors, and it is a large share of total activity, but it is not a market in the usual sense.
Why the narrative diverges
Because satellites are boring and rockets are not. Attention follows spectacle and revenue follows utility, and in space the two are unusually far apart.
What is likely to grow
Observation, as the data becomes standard input to more industries. Communications, as coverage extends. And in-orbit services – refuelling, repair, debris removal – which are becoming necessary as the number of satellites grows.
Tourism and settlement remain further out than their coverage suggests.