if you think space is just a big empty void you're in for a surprise it's filled with something mysterious meet dark matter it's this invisible substance that's all around us but we can't see it because it doesn't emit light according to NASA Dark Matter makes up about 27% of the universe that's right over a quarter of everything out there imagine it as the universe's invisible glue holding galaxies like ours together without Dark Matter our galaxy would just fall apart it's a cosmic mystery that's still being unraveled just another reminder that space is full of Wonders waiting to be discovered so next time you gaze at the stars remember there's so much more out there hidden in the dark keep looking up and stay curious