Dark count or Dark Current is one of the most important CCD specifications,

Dark count or dark current is one of the most important CCD specifications, as well as resolution, quantum efficiency, and noise figure. Dark count or dark current is one of the most important CCD specifications, as well as resolution, quantum efficiency, and noise figure. Dark current generates output even if there is no previously input input. This is caused by fever and subsequent diffusion. This dark current occurs at different positions of the CCD, but the cause of this charge generation is substantially the same at all positions.

The nature of dark energy is currently inferred. Dark energy is a "vacuum energy" represented by "cosmic constant" (Λ, Greek capital letter lambda) in the general theory of relativity, a uniform uniform density of dark energy throughout space, and time or space Some people think that it is expansion. This concept was introduced by Einstein and is consistent with our limited observation to date. Alternatively, the dark energy may change over time in the universe. Only new observations can solve the problem

In physical cosmology and astronomy, dark energy is an unknown form of energy that is thought to tend to penetrate the universe and accelerate the expansion of the universe. Dark energy is the most accepted hypothesis for interpreting observations since the 1990s and shows that the universe is expanding at the accelerated speed. Assuming that the standard model of cosmology is correct, the best current measurements show that dark energy accounts for 68.3% of the total energy of today's observable universe. Mass energy of dark matter and ordinary (baryon) matter accounts for 26.8% and 9% respectively, contribution of other components such as neutrino and photon is very small. Dark energy density (about 7 × 10 - 30 g / cm 3) is very low, much lower than the density of ordinary and dark matter in the galaxy. However, because it is uniform throughout the universe, it dominates the mass energy of the universe.

Cold dark matter provides the simplest explanation for most cosmological observations. It is a dark substance composed of ingredients and its FSL is much smaller than that of the original heparin. It seems that hot dark matter does not support the formation of galaxies and clusters of galaxies, and most particle candidates slow down in advance, so this is the focus of dark matter research. Studies of the Big Bang atomic synthesis and gravitational lens made most cosmologists believe that MACHOO does not constitute a small part of dark matter. According to A. Peter, "... ... the truly reasonable dark matter candidate is a new particle."