A mysterious and persistent cloud of particles has been detected by scientists around Earth’s orbit, and they are currently trying to figure out its origin. The cloud of micron-sized particles has been found to be blocking out light from the Sun beyond the Earth’s atmosphere, creating a “fog” around the planet. This cloud could be impacting satellite operations and our ability to observe space, so researchers are eager to find out what it is and where it came from.

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source: Phys.org