The discovery of 2024 PT5, a small, rocky body dubbed a "minimoon" during its discovery last year, hints at a hidden ...

Halley’s comet swings near Earth every 75 years. But debris left by the comet leads to two major meteor showers annually.

As the Earth orbits the sun, several times a year it passes through debris left by passing comets and sometimes asteroids. The source of the Eta Aquarids is debris from Halley’s comet.