A composite of dozens of Perseid meteors radiating across the night sky over the beach at Norderney, Germany, with green aurora glowing along the horizon
AI × astronomy

How machine learning counts meteors: the neural nets watching the Perseids

In three nights the Perseids peak under a new moon, the darkest Perseid maximum in five years. I’ll be up at Troodos with a reclining chair and a tally sheet, counting by eye the way people have counted meteors for a century. Overhead, a network of more than 1,300 cameras will be counting too, and solving an orbit for every meteor bright enough to trigger two of them at once. What made that automation possible is a piece of software: a neural network that learned to tell a meteor from an aeroplane. ...

August 9, 2026 · 7 min · Andreas Ioannou