ⓘ Physical universe ..

Accelerating expansion of the universe

The accelerating expansion of the universe is the observation that the expansion of the universe is such that the velocity at which a distant galaxy is receding from the observer is continuously increasing with time. The accelerated expansion was discovered during 1998, by two independent projects, the Supernova Cosmology Project and the High-Z Supernova Search Team, which both used distant type Ia supernovae to measure the acceleration. The idea was that as type 1a supernovae have almost the same intrinsic brightness a standard candle, and since objects that are further away appear dimmer ...

Age of the universe

In physical cosmology, the age of the universe is the time elapsed since the Big Bang. The current measurement of the age of the universe is around 13.8 billion years – 13.799 ± 0.021 billion years within the Lambda-CDM concordance model. The uncertainty has been narrowed down to 20 million years, based on a number of studies which all gave extremely similar figures for the age. These include studies of the microwave background radiation by the Planck spacecraft, the Wilkinson Microwave Anisotropy Probe and other space probes. Measurements of the cosmic background radiation give the coolin ...

Big Bang

The Big Bang theory is a cosmological model of the observable universe from the earliest known periods through its subsequent large-scale evolution. The model describes how the universe expanded from an initial state of very high-density and high-temperature, and offers a comprehensive explanation for a broad range of observed phenomena, including the abundance of light elements, the cosmic microwave background radiation, large-scale structure, and Hubbles law – the farther away galaxies are, the faster they are moving away from Earth. If the observed conditions are extrapolated backwards ...

Clockwork universe

In the history of science, the clockwork universe compares the universe to a mechanical clock. It continues ticking along, as a perfect machine, with its gears governed by the laws of physics, making every aspect of the machine predictable.

Cosmic age problem

The cosmic age problem is a historical problem in astronomy concerning the age of the universe. The problem was that at various times in the 20th century, some objects in the universe were estimated to be older than the time elapsed since the Big Bang, as estimated from measurements of the expansion rate of the universe known as the Hubble constant, denoted H 0. If so, this would represent a contradiction, since objects such as galaxies, stars and planets could not have existed in the extreme temperatures and densities shortly after the Big Bang. Since around 1997–2003, the problem is beli ...

Cosmic latte

Cosmic latte is the average color of the universe, found by a team of astronomers from Johns Hopkins University. In 2001, Karl Glazebrook and Ivan Baldry determined that the average color of the universe was a greenish white, but they soon corrected their analysis in a 2002 paper in which they reported that their survey of the light from over 200.000 galaxies averaged to a slightly beigeish white. The hex triplet value for cosmic latte is #FFF8E7.

                                     

ⓘ Physical universe

  • and esotericism, the term physical universe or material universe is used to distinguish the physical matter of the universe from a proposed spiritual
  • multiverse hypotheses, in which our universe might be one among many universes that likewise exist. Play media The physical Universe is defined as all of space
  • In physics, a physical system is a portion of the physical universe chosen for analysis. Everything outside the system is known as the environment. The
  • The accelerating expansion of the universe is the observation that the expansion of the universe is such that the velocity at which a distant galaxy is
  • In physical cosmology, the age of the universe is the time elapsed since the Big Bang. The current measurement of the age of the universe is around 13
  • The observable universe is a spherical region of the universe comprising all matter that can be observed from Earth or its space - based telescopes and exploratory
  • In the history of science, the clockwork universe compares the universe to a mechanical clock. It continues ticking along, as a perfect machine, with its
  • Physical cosmology is a branch of cosmology concerned with the studies of the largest - scale structures and dynamics of the universe and with fundamental
  • the universe as finely tuned suggests that the occurrence of life in the Universe is very sensitive to the values of certain fundamental physical constants
  • progress in explaining the values of other dimensionless physical constants. It is known that the Universe would be very different if these constants took values