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Dark energy is the term used to describe the hypothetical type of energy rationalized to account for the inflationary expansion of the universe. Similar to the Einstien's cosmological constant, which Einstein invented to account for the discrepancies of a static universe, the is no direct empirical evidence of its physical nature or form. According to the Planck mission team, and based on the standard model of cosmology, the total mass–energy of the universe contains 4.9% ordinary matter, 26.8% dark matter and 68.3% dark energy.
Although the existence of dark matter is generally accepted by the mainstream scientific community, there is no generally agreed direct detection of it. Two proposed forms for dark energy are Einstein's cosmological constant, a constant energy density filling space homogeneously, and scalar fields such as quintessence or moduli, dynamic quantities whose energy density can vary in time and space. Due to a lack of empirical evidence, there are no theoretical conjectures for the formation of dark energy as part of the Big Bang event.
Dark matter is the term used to describe the hypothetical type of non-baryonic matter rationalized to account for discrepancies between the mass of large astronomical objects, determined from their gravitational effects, and the mass calculated from the "luminous matter" that they contain: i.e. stars, gas and dust. Since there are no empirical evidence to support dark matter, by process of elimination, based in part on the calculations consistent with general relativity, dark matter is estimated to constitute 84.5% of the total matter in the universe.
Although the existence of dark matter is generally accepted by the mainstream scientific community, there is no generally agreed direct detection of it. Other theories including MOND and TeVeS, are some alternative theories of gravity proposed to try to explain the anomalies for which dark matter is intended to account. Due to a lack of empirical evidence, there are no theoretical conjectures for the formation of dark matter as part of the Big Bang event.
Other Opinion: From an alternate perspective, dark energy is thought to be the original medium of a pre-Big Bang universe. Consequently the Big Bang creation event, via an unfolding of its condition from singularity, introduce the intrusion of our existence: a reality of positive density matter within a traditional fourth dimensional SpaceTime continuum. Considering a pre-Big Bang universe as zero density matter, the intrusion of positive density matter simultaneously provided for introduction of negative density matter (or dark matter). The resulting effect of bringing the universe back into the more ordered condition consistent with its pre-Big Bang persistence is the expanding of the positive density matter within our fourth dimensional universe.
Other Comment: Dark energy is the force that expands the universe. Dark matter is the force that keeps everything from crashing into one an other.
Dark matter is what keeps galaxies together for example if you pour beads (representing stars planets etc) in a tub they spread out but if you get a fan (representing dark matter) it is possible to blow all the beads to one side dark matter is pushing certain thing together and also separating galaxies apart so in between galaxies there is dark matter. 80% of the universe is estimated to be dark matter. for a more detailed answer go to this site on the link below.
Dark energy the big bang was an explosion of sorts and after an explosion it collapses back on it self but the universe isn't its spreading out faster than light which will eventually cause the big rip dark energy is pulling every thing out ward and is faster than light however we have no clue how big the thing dark energy is spreading us into is ...
Wiki User
∙ 9y ago
Wiki User
∙ 10y agoThe only kind of energy that dark matter is -- well, MATTER. Or mass, if you prefer, which is the same thing. We don't know what KIND of matter this stuff is, hence the name "dark." The only two things we know about dark matter is that (1) it interacts with baryonic matter via gravity but (2) it does NOT interact with baryonic matter via the electromagnetic force or the strong force. At this point, we're still working on what type of matter would do that.
Wiki User
∙ 7y agoThe term "dark energy" refers to the force that is driving the accelerating expansion of the universe. It is referred to as "dark" because the nature of this energy is currently a mystery to scientists.
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Which forms of energy are produced by a burning candle?
By heat and light because a candle gives of of heat and it is lit so in some cases we need to see in the dark
What happens to light when it hits dark coloured clothes?
Most of it is converted into heat energy, that is ... it ceases to exist.
What color plastic allowed least energy to pass through it?
White is the least to absorb the energy, black however absorbs the most as its it a dark colour
What does it mean to say that in any system the total energy score stays the same?
It means that the energy demand stays the same no matter what energy source it is coming from!
What does it mean that a form of energy might take more energy to harness than it provides?
It means that we would get less energy out of that source than we put into it, so the net result is wasted energy.
What does the presence of dark lines in the solar spectrum mean?
The dark lines represents the absorption of energy at that frequency, E=hf.
When material is burned what energy changes take place?
it depends witch material your talking about and what you mean by energy electric energy and stuff you know well until i know what energy you mean i can't answer it im sorry. but heres my e mail for msn pokemon_master_mlf@hotmail.com :from your dark orbit fan poopyloopy dark orbit.
Which is thought to be more prevalent in the universe dark matter or dark energy?
Dark energy. The current estimates for the distribution of mass/energy in the Universe are approximately: 68% dark energy 27% dark matter 5% baryonic (i.e. "normal") matter
When was Dark Energy Digital created?
Dark Energy Digital was created in 1998.
Can Astronomer's directly detect dark energy and dark matter?
Dark matter and dark energy have NOT been detected yet, so any ideas about detecting dark energy and dark matter, whether it be directly or indirectly, is speculation for now.
What does dark energy seem to be doing?
Dark energy is the force that is driving the expansion of the universe
When it is dark does solar energy work?
Solar energy can be USED in the dark, but cannot be collected .
What percent of the universe is made up of dark energy?
Dark energy -- whatever it turns out to be -- constitutes about 74% of the energy in our Universe.
Is the universe matter?
The Universe contains matter, energy, dark matter, dark energy, empty space - and of course, lots of structures made up of those.The Universe contains matter, energy, dark matter, dark energy, empty space - and of course, lots of structures made up of those.The Universe contains matter, energy, dark matter, dark energy, empty space - and of course, lots of structures made up of those.The Universe contains matter, energy, dark matter, dark energy, empty space - and of course, lots of structures made up of those.
What is black energy attracted to?
I don't think there is such a thing as black energy. If you mean dark energy - well, it is proposed as a mechanism that explains the acceleration in the expansion of the Universe, but not much is really known about it.
If light is energy then what about dark is it also energy?
Dark is the absence of light. Dark is nothing itself other than the absence of light.
What is the difference between dark energy and dark matter and what are the inferred affects of each?
From my studies dark energy creates electrical phtons making a stonger pull to the source than dark matter does. In fact, I think that dark energy can power a car, but sadly it is impossible to harness dark energy. I'll have to do little more research to be sure.
