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Space
Space
Science
Robert Lea

Happy Dark Matter Day! Meet the usual — and unusual — suspects in this cosmic mystery

Robert Lea Canva Earth
An illustration of some of the leading dark matter suspects and some outside contenders.

Though Halloween will undoubtedly take the spotlight today, there's another spooky event worth celebrating. Thursday (Oct. 31) marks this year's Dark Matter Day as well, a time during which scientists celebrate the hunt for the universe's most mysterious stuff.

The day has been celebrated since 2017, and this year, it will consist of over 350 global, regional and local events that aim to engage the general public with the mystery of dark matter.

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