Home Science Physics What is Dark Matter? A Mystery of the Universe ScienceAstronomyPhysics What is Dark Matter? A Mystery of the Universe You've probably heard the term Dark Matter, but what is it, and how do we know it exists? By Watch and Study - Mar 19, 2016 305 RELATED ARTICLESMORE FROM AUTHOR Biology The scientific power of naps Biology Inside the Ice Man, Dark Matter Mystery, and Fukushima Cleanup Physics Are perpetual motion machines possible? Physics The black hole death problem Physics Why do we care about gravitational waves? Tell us what you think!