Dark matter seems to outweigh visible matter roughly six to one, making up about 27% of the universe. Here's a sobering fact: The matter we know and that makes up all stars and galaxies only accounts for 5% of the content of the universe!
Does dark matter hold the universe together?
In short, dark matter slows down the expansion of the universe, while dark energy speeds it up. Dark matter works like an attractive force — a kind of cosmic cement that holds our universe together. This is because dark matter does interact with gravity, but it doesn't reflect, absorb or emit light.
Does the universe need dark matter?
But it is an important mystery. It turns out that roughly 68% of the universe is dark energy. Dark matter makes up about 27%. The rest – everything on Earth, everything ever observed with all of our instruments, all normal matter – adds up to less than 5% of the universe.
What role does dark matter play in the universe?
Understanding dark matter is important to understanding the size, shape and future of the universe. The amount of dark matter in the universe will determine if the universe is open (continues to expand), closed (expands to a point and then collapses) or flat (expands and then stops when it reaches equilibrium).
Can dark matter give you superpowers?
User can to create or wield weaponry with power over dark matter, which grants the user a wide variety of dark matter-based abilities, including generation, transmutation, and creation of constructs, along with volatile abilities involving normal universal matter or antimatter.
Can you touch dark matter?
In theory, macros could directly interact with physical objects such as human bodies, causing "significant damage," according to the new study titled "Death by Dark Matter." Damage from such a collision would be comparable to a gunshot wound, the researchers wrote.
What happens if dark matter touches matter?
Dark matter particles can penetrate all other forms of matter, which means that they may even be able to traverse right through our planet without losing any energy whatsoever. On the other hand, their impact with ordinary matter that Earth is comprised of may hamper them slightly, resulting in a loss of energy.
How fast is the speed of dark?
Darkness travels at the speed of light. More accurately, darkness does not exist by itself as a unique physical entity, but is simply the absence of light. Any time you block out most of the light – for instance, by cupping your hands together – you get darkness.
Are black holes dark matter?
Dark matter, which has never been directly observed, is thought to be most of the matter in the universe and act as the scaffolding upon which galaxies form and develop. On the other hand, black holes, which can be found at the centers of most galaxies, have been observed.
Has the axion been found?
“We think axions could exist, but we haven't discovered them yet. You can think of axions as ghost particles. They can be anywhere in the universe, but they don't interact strongly with us so we don't have any observations of them yet.”