How many exoplanets had been confirmed as of October 2026?

How to get close to this number

Work from the detection era. The first confirmation came in 1992 and space telescopes designed for the job have been surveying since 2009, each finding hundreds to thousands. Three decades of accelerating detection gives a confirmed count of several thousand — and because confirmations keep arriving every month, a figure remembered from a few years ago will land low.

The count measures instruments, not planets. Detection relies on a planet passing in front of its star from our viewing angle or tugging on it measurably, which means we find the large, close-orbiting ones around the stars we happen to be pointing at. The catalogue is a map of what is detectable rather than of what exists.

The inference in the explanation is the genuinely significant conclusion: there are probably more planets than stars in the galaxy. That follows from how many we find around the small sample we can survey, extrapolated outward, and it converts planets from a rarity worth confirming into the default condition of a star system.