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They study distant galaxies because they want to know whats out in other galaxies and how many planets it has
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoSo they can undersatnd what is producing the light, and if the galaxies are hospitable to other forms of life :)
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How far away are the most distant galaxies?
That is impossible to answer because scientist don't know ALL the galaxies.
The fact that the light from distant galaxies is red-shifted suggests that the galaxies are?
Moving away from us
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.
What cause changes in the light coming from distant stars and galaxies?
The apparent redshift is caused by the Doppler Effect; the frequency of waves is increased by an approaching source and decreased by a leaving source. Since the fgrequencies we see from stars are slightly lower than they should be, we know that the stars and other objects are moving away. The Doppler Effect causes changes of light emanating from distant stars and galaxies.
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?
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.
When the ultraviolet light from hot stars in very distant galaxies finally reaches us what form does it reach the Earth in?
visible light
What is The bending of light due to the great mass of distant galaxies?
The bending of light due to great masses is called Gravitational MicroLensing.
Why do scientist study distant galaxies to learn about early galaxy's?
If you look at a distant galaxy, the light from the galaxy has travelled for perhaps a hundred million years, a billion years, or up to an age close to the age of the Universe (13 billion years or so), depending on the galaxy's distance. Thus, the light you see shows you how the Universe was billions of years ago.
Does gravitational lensing magnify distant galaxies at distances up to 13 billion light years behind galaxy clusters?
Yes. Lensing magnifies the image of galaxies behind distant galaxy clusters but also greatly distorts the image.
Does light does not require matter to move through?
It doesn't. Light comes to us from the Sun, and from distant stars and galaxies, through what is basically empty space.
Do scientist study other galaxies because they want to learn about the speed of light?
No. We already know a good deal about the speed of light. Scientists study other galxies to learn how galaxies work.
Why do scientist see the galaxies if they were millions and billions of years ago?
The galaxies beyond our own are millions to billions of light years away, meaning the light takes millions to billions of years to get here.
