28th November 2019

wikipedia
14

Is the universe expanding or contracting?

The Big Crunch hypothesis is a symmetric view of the ultimate fate of the universe. Just as the Big Bang started as a cosmological expansion, this theory assumes that the average density of the universe will be enough to stop its expansion and begin contracting.

Besides, why the universe is expanding?

Accelerating expansion of the universe. The accelerating expansion of the universe is the observation that the universe appears to be expanding at an increasing rate, so that the velocity at which a distant galaxy is receding from the observer is continuously increasing with time.

What is the color of the universe?

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.
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