1. Unprovable hypothesis that since galaxies and galactic clusters don't have enough mass to produce enough gravity to spin the way they do, that there thus must be invisible matter hiding that's making it all work.

2. The observation of the universe sometimes fails to follow the known laws of physics, so instead of theorizing that there must be more laws we've yet to discover, scientists have instead decided to push forward the idea that invisible masses must exist, and thus explain away the discrepancies and gaps in our knowledge.

3. Science akin to religion in that nothing at all proves it, but lots of people believe it because it explains something that was hitherto before difficult to understand.

4. Theory regarding matter and gravity that seems to make sense of Newtonian physics when it fails us, but in doing so introduces a concept that is completely ludicrous.

5. Alternative hypothesis to how the universe works to the much more logical MOND theory, or variations thereof.

6. An example of lazy science.

7. The greatest example of how extremely intelligent people can at times be completely clueless, lacking in all common sense.

1. a type of matter that cant be proven
2. a badass new Syfy TV show from the producers & writers of the Stargate TV shows.

The dark skin near/on your genitals, usually starts at the juncture of the leg and crotch area.

matter than cannot reflect sunlight. theres about 90% of matter is dark matter. which means the universe could be more cluttered than we thought

Most commonly known known as the Call of duty master camo in most recently Call of Duty Cold War

Also known for its cards in NBA 2k, as rarest card in the game.
Or its known for the thingy in space that no one cares about.

the most powerful spell of Chrono Trigger's Magus.

What Applejacks and the butterflies from My Little Pony:Friendship Adventures are made of.

hey, like , the universe should weigh this much, right, but all the stuff we can see is like only 10% of that weight, yeh, so there must be some other shit we can't see! dark matter!

BULLSHIT

1. how the fuck does any one know how much the universe weighs
2. how the fuck does any one know how much stuff there actually is in the universe

its a theory, not a provable fact 'therefore' any one claming that they 'believe' it to exist is in fact as much of a lunatic as people who live their lives according to 2000 year old religious myths

and another thing the fucking big bang right, yeh ok maybe there is evedence of it im prepared to accept that but WHAT THE FUCK CAUSED IT cos in my experience huge explosions dont just happen at random unless ive had a few too many the night before

too many so called scientific people accept these things as fact without any questions or proof, that is known as faith in my book not science

dark matter? ive shit it

Utterances in a movie theater that appear to emanate from nowhere. You can hear the comments but cannot prove they exist.