What Is Dark Matter, And Why Do We Care?

Dark matter is like an invisible friend that helps hold the universe together. You can't see it, but you know it's there because things move in ways they shouldn’t, like when stars and galaxies act like they’re being pulled by something we don’t see.

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Examples

A child playing with blocks can’t see all the weight holding them up, dark matter is like that hidden weight.
Imagine stars dancing in a big ballroom, but there's an invisible partner guiding each one, that’s dark matter at work.
You can’t see it, but you know your dog is running toward you because of how it moves, dark matter is like that unseen force making the universe move.

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Categories: Space · dark matter· cosmology· galaxies· universe