Everything humanity has put in orbit, and everything the sky has taken back, from Sputnik in 1957 to the CelesTrak snapshot of 2026-07-31. Every figure is computed live from the same catalog that drives the 3D atlas.
64% of all cataloged debris has already reentered.
How orbits filled up
Each band is the number of objects in that orbit class at year's end. The whole stack is everything in orbit, so one picture shows both how fast space filled up and which orbits it filled: low orbit dominates, and the recent surge is the megaconstellations.
Objects in orbit by orbit class, 1957 to today
Tracked payloads and rocket bodies still in orbit at each year's end, stacked by orbit class.
LEO
MEO
GEO
HEO
Low Earth orbit holds the overwhelming majority: 18,395 of the 21,732 intact objects in orbit today. Reconstructed from launch and decay dates, so the 2026 edge matches the live counts above.Source: CelesTrak SATCAT.
Launches and reentries per year
Bars above the line are objects launched into orbit that year; bars below are objects that reentered. The atmosphere is a constant cleanup crew: most of what has ever launched into low orbit has already come back down.
Objects launched versus objects reentered, per year
Cataloged objects by launch year (up) and by reentry year (down).
Objects launched into orbit
Objects that reentered
Launch counts have climbed into the thousands per year as constellations deploy in batches, while reentries rise and fall with the 11-year solar cycle, which puffs up the upper atmosphere and pulls low orbits down faster.Source: CelesTrak SATCAT.
Orbit classes today
The four orbit classes as they stand today, ranked by how many objects are still up there.
Tracked debris is the fragments too small to be payloads or rocket bodies but big enough to follow from the ground. The good news is in the shape of it: two thirds of everything ever created has already burned up, and modern operators passivate and deorbit to keep it that way.
Tracked debris fragments reentering per year
Fragments removed from the catalog by reentry, by calendar year.
Of 34,568 debris fragments ever tracked, 22,245 have already reentered and burned up. Reentries surge when the Sun is active and the upper atmosphere expands.Source: CelesTrak SATCAT reentry dates.
Debris does not appear on a smooth yearly curve the way launches do: the public catalog records each fragment under its parent's launch date, not the day it broke apart. So the clouds are best read as events. These are the largest on record, with their documented breakup dates:
Space Atlas