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Hubble discovered other galaxies than our own. His work lead to the idea that these galaxies are generally moving away from our own Milky Way. Further, logical thinkers considered that the universe itself is expanding. And if the universe is expanding, it must at some point have been "compressed" with all the matter closer together. This is the source of the idea we call the Big Bang.
What else can I help you with?
What is the name of the large spiral galaxy found in the bottom right of the Hubble Deep Field?
The point of the Hubble Deep Field observations is that scientists pointed the Hubble Space Telescope toward a dark patch of the sky where there were no known stars or galaxies. Everything observed in those photos had been entirely unknown before the images were obtained. So, nothing there has a "name"; by now, it probably has an index number in some database. But not a "name".
How do scientists use Doppler shift to support the big bang theory?
It is called The Big Bang Theory, actually. Doppler shift shows that galaxies are moving away from each other at rates that depend on how far apart they are. According to the Big Bang Theory, the universe began with an enormous explosion. Then, the entire universe began to expand everywhere at the same time.
Why is red shift and blue shift important to the earth?
Redshift or blueshift is a change in the frequency of the light you receive, compared to the frequency at which it was emitted. A redshift is a reduction in frequency; this basically means that the object that emits the light is moving away from you.
What is the Doppler shift as it applies to light from stars?
You've probably heard the old classical description of the Doppler effect; if you're standing still near a train track, you can hear the sound of the moving train shifted to a higher frequency as the train is coming toward you, and as the train passes by, you can hear the sound shift down in pitch. The sound waves are bunched up a bit as the train is coming toward you, and you hear the train at an increased tone; when the train passes by and moves away from you, the sound waves are stretched out so you hear the sound at a lower pitch. By measuring the change in the sound, you can calculate quite accurately how fast the train was moving when it passed by. For stars, we're not listening to a tone; we're measuring the light spectrum, but the principle is the same. We know what the "normal" frequencies in the starlight would be, for a star not moving towards us or away from us. We measure specific spectrum patterns called "absorption lines". We can detect shifts in these patterns. So, we can measure whether the star is coming toward us (spectral lines at higher frequencies than normal) or is headed away from us (spectrum showing lower frequencies than normal). When we measure the light - and the Doppler shift - of other stars in our Galaxy, we see a mix of stars moving toward us, and stars moving away from us. This is perfectly normal. But when we measure the Doppler shift of the light from other galaxies, we see that most of the other galaxies are moving away from us, and that the farther away they are, the faster they are moving! Note: For those who like a bit of extra detail: The change in the light from distant galaxies is not a true Doppler shift. It's similar, but is caused by the expansion if space itself.
Why did Houston retreat to east instead of moving toward Santa Anna's army?
because they wanted some burritoes
How does the redshift of galaxies provide evidence that the universe is expanding?
The redshift of galaxies refers to the phenomenon where the light from distant galaxies shifts toward the red end of the spectrum, indicating that they are moving away from us. This observation, first noted by Edwin Hubble, suggests that the universe is expanding, as galaxies are not just receding from Earth but from each other. The greater the redshift, the faster a galaxy is moving away, supporting the idea that space itself is stretching. This relationship is encapsulated in Hubble's Law, which quantifies the expansion rate of the universe.
In 1912 an astronomer at Arizona's Lowell Observatory noticed that the lines in the spectra of most galaxies shifted toward the red end of the spectrum Another American astronomer Edwin Hubble lat?
Galaxies are moving away from each other in a constantly expanding universe
Are any of the galaxies moving toward earth?
Yes. Andromeida galaxy.
How did scientists belived that distant galaxies were rapidly moving away from the earth?
Scientists believed that distant galaxies were rapidly moving away from Earth primarily due to the observation of redshift in their light spectra. This phenomenon, known as the Doppler effect, indicated that as galaxies move away, their light shifts toward longer wavelengths (red). Edwin Hubble's observations in the 1920s showed a correlation between the distance of galaxies and their redshift, leading to the formulation of Hubble's Law, which demonstrated that the universe is expanding. These findings provided strong evidence for the Big Bang theory and transformed our understanding of the cosmos.
What would it mean if galaxies were moving toward each other?
Pokemon rulez
In which direction are nearly all galaxies moving relative to earth?
they are moving in all directions away, toward, sideways relative to EarthNearly all galaxies are moving away from the Earth. This is because the universe is expanding.
What are the glaxies moved toward at different speeds called?
Galaxies moving toward each other at different speeds are called interacting galaxies. These interactions can result in tidal forces, collisions, and merging of the galaxies, leading to various changes in their structures.
What is the exact number of galaxies are there?
We cannot even guess how many galaxies there are, because every time we develop newer and more powerful telescopes, we discover that there were 10 times more galaxies than we could see with the last generation of telescopes. The number is undoubtedly in the billions - perhaps billions OF billions.One of the things that drove this point home was one of the first photos from the Hubble Space Telescope, called the "Deep Field Survey". Astronomers pointed the Hubble toward a tiny spot in the sky where there were no stars, and took a photo for a week or so.In that tiny spot with no stars, Hubble saw galaxy after galaxy, THOUSANDS of then, all too faint and far away to be seen at all with any ground-based telescope.
Does the galaxy moving each other?
Yes, some of the galaxies are moving toward each other like our milky way and Andromeda moving toward each other with the speed 120 km per second and after 3 billion years from now these galaxies collide with one another. The current distance of Andromeda from milky way is about 2.5 million light years
What did hubble conclude when he noted that light emitted from star is shifting toward the red end of the electromagnetic spectrum?
The obvious conclusion is that the Universe is expanding - the redshift is interpreted as a Doppler shift, therefore it seems that distant galaxies are moving away from us. This interpretation is widely accepted nowadays; there aren't any other explanations that are generally consistent with observations. I am not sure whether Mr. Hubble concluded that, but I think he did.
What diagram best represents the pattern of spectral lines from the same element when it was observed by Edwin Hubble in the light of one of the distant galaxies?
The best diagram to represent the pattern of spectral lines from the same element observed by Edwin Hubble in the light of distant galaxies is the redshift spectrum. This spectrum shows the spectral lines of elements shifted toward longer wavelengths (redshifted) due to the Doppler effect, indicating that the galaxies are moving away from us. The pattern of these lines remains consistent with the element's known absorption or emission spectrum, but the entire set of lines shifts uniformly to the red, reflecting the expansion of the universe.
Which direction are galaxies moving when they experience blue shift?
When galaxies experience blue shift, they are moving closer to us. This phenomenon occurs when the light emitted by the galaxy is compressed into shorter wavelengths, shifting it toward the blue end of the spectrum. Blue shift is typically observed in galaxies that are part of a gravitational interaction or are falling into a larger galaxy. In contrast, galaxies moving away from us experience red shift, where the light is stretched into longer wavelengths.
