what's quintessence & dark matter ?pls simplify.?

Answer 1

Quintessence is a hypothetical form of dark energy postulated as an explanation of observations of an accelerating universe. Quintessence is a scalar field which has an equation of state (relating its pressure pq and density ρq) of pq = wρq, where w is less than -1/3. Quintessence is dynamic, and generally has a density and equation of state that varies through time and space. By contrast, a cosmological constant is static, with a fixed energy density and w = −1.

DARK matter is matter that does not emit or reflect enough electromagnetic radiation to be detected directly, but whose presence may be inferred from its gravitational effects on visible matter. Among the observed phenomena consistent with the existence of dark matter are the rotational speeds of galaxies and orbital velocities of galaxies in clusters, gravitational lensing of background objects by galaxy clusters such as the Bullet cluster, and the temperature distribution of hot gas in galaxies and clusters of galaxies. Dark matter also plays a central role in structure formation and Big Bang nucleosynthesis, and has measurable effects on the anisotropy of the cosmic microwave background. All these lines of evidence suggest that galaxies, clusters of galaxies, and the universe as a whole contain far more matter than is directly observable, indicating that the remainder is dark.

The composition of dark matter is unknown, but may include new elementary particles such as WIMPs and axions, ordinary and heavy neutrinos, dwarf stars and planets collectively called MACHOs, and clouds of nonluminous gas. Current evidence favors models in which the primary component of dark matter is new elementary particles, collectively called nonbaryonic dark matter.

Answer 2

Dark energy and matter are inventions to explain some aspects of the universe that don't seem to make sense.
They are strictly theoretical entities and there is a good chance they are not needed at all.

Answer 3

apparently, God likes to create very complicated issues to coach His Glory and countless capability. Why shouldn't He gain this if all He has to do is communicate them into existence? in case you need to snap your palms and alter all of the automobiles in the worldwide to run on water without toxins, does no longer you? How approximately in basic terms getting the same mileage as a bumblebee that could commute a million miles on a gallon of nectar? Who created the bee? The human strategies is a lot extra complicated than something of the universe mixed. evaluate there are extra or less 6 billion human beings in the worldwide, each with extra or less one hundred trillion extremely complicated cells of their bodies, the physique creates billions of recent cells on a daily basis, and has 3 billion pairs of DNA....the gadget through which our eyes and strategies "see" demands tens of millions of electric and chemical conversions to happen each minute, all of the blood vessels in the physique, if laid out end to end, would stretch international two times over...60,000 miles. yet our marvelous bodies in basic terms comprise around 3.00 worth of chemical components and minerals. God's handiwork is exceptional! in the centuries till now scanning electron microscopes, human beings ought to make certain the sweetness of God's creation in the celebrities....and that they nevertheless can see much extra at present. The Bible says the celebrities are extra limitless than all of the sand in the worldwide. dark count and capability look God's approach of protecting the universe from collapsing on itself. If galaxies are shifting faraway from one yet another and earth, why are not additionally they increasing as nicely? And why do all of them look shifting faraway from earth...is earth the midsection of creation?