Space looks mostly empty, and it is. But there's a bit of concern about the number of things humanity is putting into orbit.
Satellites of all kinds number 14,500 this year with 90 countries having at least one. They function for science, weather, military, communication, spy purposes. Starlink, providing internet connectivity, has 9900 up there (as of March 2026) with plans for a total of 42,000.
But there's more. Over 3000 defunct satellites are still orbiting though they no longer function. Rocket upper stages and fragments of old rockets or satellites also float through space.
Tens of thousands of pieces of "debris" (including functioning satellites) are being tracked.
