Why is Cosmic Microwave Background important to cosmology?

The temperature and pressure was very very high from ...AS time passed the universe began to expand and cooled .as per estimates the big bang started about 13.82 billion years...

The temperature of space is not absolute zero, it is almost 3 degrees K. That is a really really small amount of heat but it is not zero. Since the...

If you consider that 99.99999% of our solar system is empty space, that empty space at 3 K would have more total heat in it than .

The discovery of Cosmic Microwave Background (C M B ) is attributed to the 1978 Nobels Arno A. Penzias and Robert W. Wilson. This 1964-'65 discovery...

After big bang universe expanded and cooled down to 2.7 degree k.Tha cosmic back ground micro wave radiations is now every where in the universe at this particular temperature.

In the very early universe (and I mean billionths of billionths of a second) the Universe was, obviously, much smaller. At this scale quantum physics was dominant and there were...

Soon after , the universe was very hot and filled with high energy gamma rays. The universe was much smaller then. As the universe expanded, the background radiation got progressively...

Not exactly. The physics at very high energy like conditions is still unknown. This is why we build big accelerator to try to reproduce and observe those conditions. But we...

CMBR anisotropies are due to the following reasons: Relative motion of solar system with respect to the rest frame of CMBR gives rise to a dipole anisotropy of about...

The early universe was not composed by matter but by electromagnetic radiation at very high energy. After the expansion the energy of the radiation was distributed on a bigger volume...