some astronomy stuff for ya

that all the atoms in the stars, planets, gas, comets, dust and debris, etc. that make up all the galaxies account for only 4% of the total mass of the universe.

that means that 96% of the universe is made up of around 22% dark matter (hypothetical particles) and the remaining 74% dark energy - about which we know next to nothing.

yep. we only know what 4% of the universe we can see is made of.