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When viewed from earth the light from very distant galaxies shows a red shift evidence that these distant galaxies moving towards or away from earth?
Wiki User
∙ 10y ago
The "redshift" refers to the fact that the light is less energetic than when it was emitted; it shows that the galaxies move away from us. Should a galaxy move towards us - which is possible only for galaxies that are relatively close to us - then there would be a blueshift.
Wiki User
∙ 10y ago
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Which has a higher frequency a star moving away from earth or towards earth?
I would think that current evidence suggests that the stars moving away from earth, some of them in far distant galaxies moving at unimaginably high speeds, are going much faster than stars moving toward us. The entire Andromeda galaxy is moving toward us and will collide with us in roughly 5 billion years, and it is not moving anywhere near as fast as the distant retreating galaxies.
The fact that the light from distant galaxies is red-shifted suggests that the galaxies are?
Moving away from us
Are galaxys moving away from each other which means the universe is contracting?
No.More specifically:Not all galaxies are moving away from each other. The Milky Way and Andromeda galaxies are moving towards each other (and at a pretty good clip, too: about 300 km/s). The entire "local group" of galaxies is moving in the general direction of something called the "Shapley Supercluster".Very distant galaxies do tend to be moving away from each other, but that means the universe is expanding, not contracting.
How does light from distant galaxy . galaxy out side of 32000000 light years support the big bang theory?
The light from distant galaxies is redshifted. The only reasonable explanation for that is that the galaxies are moving away from us.
How many galaxies are approaching milky way galaxy and how many are moving away related to the cosmological red shift?
Most galaxies are moving away from us. Only a few galaxies, which are nearby, are moving towards us.
What if no distant galaxies showed any redshift or blueshift?
It would mean that the universe was radially static. That is, no galaxy was moving towards or away from the earth. This could happen if everything in the whole universe were moving in the same direction at the same [linear or rotational] velocity.
Why do distant galaxies appear to be moving away from each other the farther they are from your planet?
Because you touch yourself at night
When astronomers study distant galaxies they notice changes to the waves they observe describe the change to the waves they observe?
Because the universe as a whole is expanding, distant galaxies are moving away from us. As a result, electromagnetic waves emitted by those galaxies experience what is known as a red shift. Their wavelengths get longer.
How can you tell that some galaxies are far away and moving rapidly towards us?
You can tell by the blueshift in the spectrum; the only reasonable explanation for this blueshift is the Doppler effect. - Please note that most galaxies are moving away from us, not towards us.
Evidence that the universe is expanding is best provided by the?
The main piece of evidence is the redshift of galaxies. In spectroscopy an absorption line that is redshifted indicates that the object is moving away. The farther the object is from the source of observance the faster that object travels in relation to the observer. Almost all galaxies are redshifted as opposed the our local neighborhood, the Andromeda Galaxy for instance is blueshifted because it is heading strait for us. at some point all galaxies will spread so far from each other that they will be going so fast that they reach the speed of light in respect to our position and are never seen again. Another piece of evidence is the fact that their is some warmth in space. Also known as the Cosmic background radiation. Empty Space is around 2.7 degrees kelvin which is the residual heat from the big bang. Had their not have been an explosion with a massive amount of heat and energy and everything simply was, then empty space would be absolute zero. This is the two strongest arguments that support the big bang theory.
Why are the spectra of galaxies shifted towards the red end?
Because - in most cases - they are moving away from us.However, the Andromeda Galaxy is blue shifted showing it is moving towards us.
What are three forms of evedence used to support th big bang theory?
Three important pieces of evidence are:* The redshift of distant galaxies. This means that galaxies are moving away from us. * The percentages of elements and isotopes. This closely matches predictions from theory. * The cosmic background radiation. This, too, closely matches predictions from theory.
