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The ISBN of George's Secret Key to the Universe is 9781416954620.

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11y ago

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Continue Learning about Astronomy

Observation of the red shift of galaxies suggest that the universe is what?

Expanding Or that the light is exiting a gravity hole (star).


Does red shift expand the universe?

Redshift does not expand the universe. Redshift is a physical quantity that is used to describe the expansion of the universe. The current time has a redshift of zero. at redshift 1, the universe was half the size it is now. At redshift 2, the universe was 1/3 the size it is now, and so on. if redshift is z, then (size of universe at redshift z)/(current size of universe)= 1/(z+1)


If were in space then what is space in what is space expanding into?

No one knows for sure. There are theories, but absolutely none of them can be proved, and I doubt we will ever find out. The universe is expanding firther into what was here before the big bang. Basically, nothing. The universe isn't expanding like a balloon blowing up; the universe is already there, but the objects inside it are spreading out constantly (black holes, stars, galaxies, etc.) The universe isn't expanding; the objects inside are spreading out within it.


Why did the Enlightenment thinkers think it was important to understand the universe?

The Enlightenment thinker thought it was important to understand the universe because it changed how people looked at everything on the whole, and began to question religion and the scripture. Copernicus first suggested the universe did not revolve around the earth.Copernican heliocentrism and Galileo's discoveries caused men of science to take another look at the universe. To these investigators, the earth became a rather insignificant speck of dust floating in the cosmos.


What is recessional red shift?

Recessional red shift refers to the phenomenon where light emitted by distant galaxies appears to be shifted towards longer (redder) wavelengths as they move away from us due to the expansion of the universe. This effect is a key piece of evidence supporting the concept of an expanding universe and the Big Bang theory.