- Is dark matter unstable?
- How can the universe end?
- How dangerous is antimatter?
- What would happen if dark matter didn’t exist?
- Why do we think dark matter exists?
- Is dark energy negative energy?
- Is dark matter theoretical?
- Is dark energy proven?
- Is dark matter everywhere?
- Is dark matter harmful?
- Does dark matter have mass?
- Is dark energy faster than light?
- What happens if a human touches dark matter?
- Are black holes dark matter?
- Why is Dark Matter difficult?
- What could we do with dark matter?
- Can Dark Matter give you powers?
- What is dark matter for dummies?
Is dark matter unstable?
Russian scientists have discovered that the proportion of unstable particles in the composition of dark matter in the days immediately following the Big Bang was no more than 2 percent to 5 percent.
Their study has been published in Physical Review D.
The nature of dark matter remains unknown..
How can the universe end?
The ultimate fate of an open universe is either universal heat death, a “Big Freeze” (not to be confused with heat death, despite seemingly similar name interpretation — see §Theories about the end of the universe below), or a “Big Rip”, where the acceleration caused by dark energy eventually becomes so strong that …
How dangerous is antimatter?
A gram of antimatter could produce an explosion the size of a nuclear bomb. However, humans have produced only a minuscule amount of antimatter. … If all the antimatter ever made by humans were annihilated at once, the energy produced wouldn’t even be enough to boil a cup of tea.
What would happen if dark matter didn’t exist?
Without dark matter, galaxies would lose a large fraction of the gas that forms new stars immediate after the first major star-forming event they experienced.
Why do we think dark matter exists?
We believe most of the dark matter is composed of new particles smaller than atoms that are different from anything scientists have ever detected and studied. It seems that the very essence of most of the matter in the universe is different from what you and I and rocks and trees and Earth and the Sun are made of.
Is dark energy negative energy?
Dark Energy is a hypothetical form of energy that exerts a negative, repulsive pressure, behaving like the opposite of gravity. It has been hypothesised to account for the observational properties of distant type Ia supernovae, which show the universe going through an accelerated period of expansion.
Is dark matter theoretical?
Although the existence of dark matter is generally accepted by the scientific community, some astrophysicists, intrigued by certain observations which do not fit some dark matter theories, argue for various modifications of the standard laws of general relativity, such as modified Newtonian dynamics, tensor–vector– …
Is dark energy proven?
Evidence of existence. The evidence for dark energy is indirect but comes from three independent sources: Distance measurements and their relation to redshift, which suggest the universe has expanded more in the last half of its life.
Is dark matter everywhere?
Dark Matter Is Everywhere Dark matter is pervasive throughout the Universe—so it’s no surprise that dark matter is also prevalent on Earth. Based on observations of the motions of nearby stars, theory one dark matter particle per coffee mug-sized volume of space.
Is dark matter harmful?
But more-massive pieces of dark matter known as macroscopic dark matter, or macros, could lurk in the cosmos. 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.”
Does dark matter have mass?
Dark matter is invisible, and scientists have long tried in vain to directly detect the mysterious particles. But since dark matter has mass, its presence is inferred based on the gravitational pull it exerts on regular matter.
Is dark energy faster than light?
Is it possible that dark energy could travel faster than light? Yes! Dark energy consists of neutrinos and neutrino-like symmetric particles that travel at (infinitesimally) greater than the speed of light.
What happens if a human touches dark matter?
As it wouldn’t interact with matter, it would simply pass through the solid Earth as easily as if it were empty space. Remarkably, the dark matter particles that once made you up don’t lose any energy as they pass through the Earth.
Are black holes dark matter?
Primordial black holes are non-baryonic and as such are plausible dark matter candidates. Primordial black holes are also good candidates for being the seeds of the supermassive black holes at the center of massive galaxies, as well as of intermediate-mass black holes.
Why is Dark Matter difficult?
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.
What could we do with dark matter?
If we can understand and measure the particle properties of dark matter, we may be able to create conditions that coax it into annihilating with itself, leading to the release of energy via Einstein’s E=mc^2, and the discovery of a perfect spacecraft fuel.
Can Dark Matter give you powers?
In anime/manga Dark Matter has broad range of powers, including Form Manipulation/Elemental Manipulation. It isn’t associated with space, but more with “Supernatural” form of matter normally associated with Dark Energy Manipulation, various forms of Magic and Destructive Energy Manipulation.
What is dark matter for dummies?
Dark matter is dark: It emits no light and cannot be seen directly, so it cannot be stars or planets. Dark matter is not clouds of normal matter: Normal matter particles are called baryons.