ISRO’s DUST Experiment (DEX)

ISRO’s Dust Experiment (DEX), a 3-kg instrument developed by the Physical Research Laboratory (PRL), has confirmed that an interplanetary dust particle strikes Earth’s atmosphere roughly every 1,000 seconds.

This means an interplanetary dust particle enters Earth’s atmosphere approximately once every 16 minutes.

Aspect	Details
Instrument	DEX is a 3-kg scientific instrument developed by the Physical Research Laboratory (PRL).
Launch Platform	It was launched aboard the XPoSat mission in January 2024.
Main Finding	Interplanetary dust particles strike Earth’s atmosphere roughly every 1,000 seconds.
Working Principle	DEX uses hypervelocity principles to detect, heat, and measure microscopic fragments originating from comets and asteroids.

PT Facts

DEX: Stands for Dust Experiment.
XPoSat: India’s X-ray Polarimeter Satellite launched to study cosmic X-ray sources.
Interplanetary Dust: Helps scientists understand comets, asteroids, and the early solar system.
Hypervelocity Detection: Used to study high-speed microscopic particles entering Earth’s environment.

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