Unlike normal matter, dark matter
does not interact with the electromagnetic force
. This means it does not absorb, reflect or emit light, making it extremely hard to spot. In fact, researchers have been able to infer the existence of dark matter only from the gravitational effect it seems to have on visible matter.
Why does dark matter not exist?
Because
dark matter has not yet been observed directly
, if it exists, it must barely interact with ordinary baryonic matter and radiation, except through gravity. Most dark matter is thought to be non-baryonic in nature; it may be composed of some as-yet undiscovered subatomic particles.
Will dark matter ever be discovered?
Scientists have not yet observed dark matter directly
. It doesn’t interact with baryonic matter and it’s completely invisible to light and other forms of electromagnetic radiation, making dark matter impossible to detect with current instruments.
What is still unknown about dark matter?
We can learn that dark matter behaves as though it has mass, but doesn’t emit or absorb light; it can only bend it through its gravitational effects on spacetime. It’s not actually dark; it’s
rather transparent
, as it doesn’t have a color at all.
Where has dark matter not been found?
Evidence for such tiny clumps of dark matter has not been found yet; observers have only studied much bigger systems, namely galaxies like
our own Milky Way
, containing gas and stars as their inner core, which is surrounded by a halo of dark matter.
Are we living in dark matter?
Dark matter is all around us
because we live in the Milky Way’s dark matter halo, but we can’t directly detect it. If it’s influencing us in any way but gravity, it’s probably due to rare interactions between dark matter particles and regular particles.
Can neutrinos be dark matter?
Neutrinos are
a form of dark matter
, because they have mass, and weakly interact with light. But neutrinos have such a small mass and high energy that they move through the universe at nearly the speed of light. For this reason, they are known as hot dark matter.
Is dark matter faster than light?
Dark matter is therefore non-baryonic,
travelling faster than light
and has a mass half that of a photon.
Can dark matter give you superpowers?
In the game series Mass Effect, dark matter is manifested in the form of a substance called “Element Zero”, which is informally referred to as “eezo”. In DC’s Flash, all the things are about the Dark Matter which
gives human superpowers
.
How much is dark matter worth?
1 gram of dark matter is worth
$65.5 trillion
.
Is dark matter solid?
Since at least the 1920s, astronomers have hypothesized that the universe contains more matter than seen by the naked eye. Support for dark matter has grown since then, and although
no solid direct evidence of dark matter has been detected
, there have been strong possibilities in recent years.
What keeps space empty?
A point in outer space is filled with
gas, dust
, a wind of charged particles from the stars, light from stars, cosmic rays, radiation left over from the Big Bang, gravity, electric and magnetic fields, and neutrinos from nuclear reactions. …
What exactly is dark matter?
Dark matter is composed of particles that do not absorb, reflect, or emit light, so they cannot be detected by observing electromagnetic radiation. Dark matter is
material that cannot be seen directly
. … Scientists believe that dark matter may account for the unexplained motions of stars within galaxies.
Is the universe infinite?
If the universe is perfectly geometrically flat, then it can be infinite
. If it’s curved, like Earth’s surface, then it has finite volume. Current observations and measurements of the curvature of the universe indicate that it is almost perfectly flat.
How do we know dark matter exists?
We can detect the dark
matter through gravitational lensing
, which detects shifts in light produced by distant celestial objects [5]. The bright spots outside the colored areas are stars and galaxies that are not part of the Bullet Cluster (Credit: X-ray: NASA/CXC/CfA/ M.
Does dark matter and energy exist?
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.
