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Cosmic background radiation

cosmic background radiation; primal glow
The background of radiation mostly in the frequency range 3 × 108 to 3 × 1011 Hz (see scientific notation) discovered in space in 1965.

Cosmic Background Radiation
The nearly uniform radiation received from all regions of the sky. It is a radio signal with a temperature of 2.7K, and is thought to be the cooled afterglow of the Big Bang.

Cosmic Background Radiation (CBR) - Radiation observed to have almost perfectly uniform brightness in all directions in the sky. The CBR is highly redshifted radiation produced about a million years after the universe began to expand ...

Cosmic Background Radiation: The remnant radiation from the Big Bang. Its distribution in the universe today can tell us about how the universe may have formed.
Cosmonaut: A participant in the Russian human spaceflight programme.
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cosmic background radiation - The microwave radiation coming from all directions that is believed to be the redshifted glow of the big bang.

Cosmic Background Radiation: The blackbody radiation, now mostly in the microwave band, which consists of relic photons left over from the very hot, early phase of the Big Bang.

COSMIC BACKGROUND RADIATION
Cosmic Background Radiation (abbreviated CMB, CMBR and CBR) is the radiation (energy) which remains from the original Big Bang explosion which formed the universe.

The cosmic background radiation. It fits, in all manner, exactly what the Big Bang model would predict. There used to be some aspects in the radiation that appeared to conflict with the Big Bang, but when analysed further there only was more evidence.

Mapping the Cosmic Background Radiation
Perhaps the most spectacular discovery of all was a faint "hiss" of radio signals coming equally from all directions in the universe.

*Cosmic Background Radiation
*Cosmic background radiation
*Cosmic censorship hypothesis
*Cosmic inflation
*Cosmic microwave background
*Cosmic microwave background radiation
*Cosmic radiation
*Cosmic ray
*Cosmic ray spallation
*Cosmic rays ...

In particular, we detect the same intensity of cosmic radio waves (cosmic background radiation) from all directions of space, suggesting that the regions that emitted that radiation had the same temperature at the time of emission.

The cosmic background radiation is interpreted as relict radiation from the primeval fireball; it represents a z of approximately 3000 (see Crossover Time). [H76] ...

A white dwarf will eventually cool and become a non-radiating black dwarf in approximate thermal equilibrium with its surroundings and with the cosmic background radiation. However, no black dwarfs are thought to exist yet.

"Cosmic Background Radiation".
GSU hyperphysics's "3K Cosmic Background Radiation".
Wilson, Robert Woodrow, "The Cosmic Microwave Background Radiation". Nobel Lecture.
Wilkinson Microwave Anisotropy Probe (WMAP) Project. [ed.

It is thought that the cosmic background radiation left over from the Big Bang includes a background of low energy neutrinos. In the 1980s it was proposed that these may be the explanation for the dark matter thought to exist in the universe.

Because radiation was "tied" to normal matter up until decoupling, any variations in the matter density at that time would have led to temperature variations in the cosmic background radiation"denser regions would have been a little hotter than less ...

After that the photons of the cosmic background radiation have traveled on straight lines (to us) without interacting with matter ever since.

In 1975, infrared observations made from a balloon flight proved that the Cosmic Background Radiation follows a blackbody curve. Additional studies of the Cosmic Background Radiation were done using the COBE satellite which was launched in 1989.

The 3 K radiation is called various things, like the Cosmic Background Radiation, the Cosmic Microwave Background Radiation, the 3 K background radiation or all other sorts of variations of these words.

Anisotropy is a state in which a physical characteristic (like the temperature of the cosmic background radiation) varies in value along axes in different directions - a physical measurement made in one direction differs from the measurement made in ...

The other two instruments were the Far Infrared Absolute Spectrophotometer (FIRAS) which compared the cosmic background radiation to an accurate blackbody source and observed the dust and light emission from the Galaxy; ...

All of the observable universe is filled with large numbers of photons, the so-called cosmic background radiation, and quite likely a correspondingly large number of neutrinos. The current temperature of this radiation is about 3 K (âˆ'270.

The CMBR is also sometimes called the "microwave background," or "cosmic background radiation" (CBR).

This cosmic background radiation is believed to be an indication that the universe began with an explosive big bang rather than having always existed in an unchanging steady state.

"This jet is especially significant because it allows us to probe the cosmic background radiation 1.

Compton Gamma-ray Observatory
IRAS Infrared Astronomical Satellite
TPF Terrestrial Planet Finder
NGST Next-Generation Space Telescope
SIM Space Interferometry Mission
Planck Cosmic Background Radiation Field survey ...

When they consulted Bernard Burke of the Massachusetts Institute of Technology, Boston, about the problem, Burke realized that Penzias and Wilson had most likely found the cosmic background radiation that Robert H. Dicke, P.J.E.

have receded from the Milky Way, thereby maintaining forever the present appearance of the universe. The steady-state theory is no longer accepted by most cosmologists, particularly after the incompatible discovery of cosmic background radiation in ...

Topic: Astronomy