Interplanetary dust particles

Solar System
Interplanetary dust cloud

Small particles between planets

The interplanetary dust cloud, or zodiacal cloud, consists of cosmic dust that pervades the space between planets within planetary systems, such as the Solar System. This system of particles has been studied for many years in order to understand its nature, origin, and relationship to larger bodies. There are several methods to obtain space dust measurement.

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Interplanetary dust particle | astronomy | Britannica