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Explain the movement and location of objects in the universe or their composition e g red shift blue shift line spectra?
Wiki User
∙ 12y ago
The universe is expanding, as a result both of the Big Bang (some thirteen and a half billion years ago) and also what appears to be pressure exerted by what is known as dark energy (which is to say, some kind of energy which we have a great deal of difficulty in directly observing). Because of this expansion, distant objects (beyond our local galactic cluster) are moving away from us, and the more distant they are, the faster they are moving away. This receding motion creates a red shift (that is, a shift to longer wavelengths) in their spectra, known as a Doppler shift. If they were approaching rather than receding, the shift would be toward the blue (shorter wavelengths).
Wiki User
∙ 12y ago
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What does the nebular hypothises explain?
the formation of the universe
Scientists who explain the origin and development of the universe are called?
Cosmologists
What theory is thought to explain the beginning of the universe?
big bang theory
How do scientists explain the origin of the universe?
By thinking of how to do it and showing evidence. muhaaa!
Explain why objects that are farther away look younger to us than if they were closer to us?
light from any source takes time to reach us, it merely travels so fast that we percieve it as being instant because we tend to be very close to the sources of light we manipulate. when we see light from a galaxy 1000 light years away, we are seeing light that was emitted by that galaxy 1000 years ago, and if this galaxy suddenly disappeared, we wouldn't know about it for 1000 years, until the last of its light arrived and then no more. if you consider this in cosmic terms, were we to study a region of the universe 1 billion light years away, we would be looking at something 1 billion years old, a snapshot of what the universe looked like a billion years ago, a younger universe. probably helps to explain what younger means here: in space the universe is basically the same everywhere, stars in galaxies in clusters, but in time the composition has changed as chemical and nuclear reactions have altered the various quantities of different substances. so we see a galaxy a billion light years away, its composition will be of an earlier order than the composition of a nearer galaxy. As the universe expands galaxies move farther apart, the light more faint.
How do you explain science?
Science is the study of the universe: its life, its composition, and the physics that guide the universe. However, to be strictly scientific, a scientist must learn through the process of asking questions, answering them through scientific experiments, and his or her results must be repeatable.
What is a contrast line and how do you use it in your composition?
explain the use of line of composition?
What is accelerating universe?
An accelerating universe is a theory which describes and seeks to explain the increasing rate of the expansion of the universe.
What is an accelerating universe?
An accelerating universe is a theory which describes and seeks to explain the increasing rate of the expansion of the universe.
Explain what thematic transformation is in a composition and give an example of its use in composition?
this never has the answers i need!
What did Corpernicus explain?
That the sun was the center of the universe
What does the nebular hypothises explain?
the formation of the universe
How does the big bang theory explain the expansion of your universe?
It doesn't really explain it as describe it. Think of the universe as sort of the smoke and debris that resulted from a massive explosion.
Is the composition of air consistent Explain your thinking?
nothing
Scientists who explain the origin and development of the universe are called?
Cosmologists
What do scientist use to explain the expanding universe?
Dark energy.
What did Ptolemy and Copernicus use to try to explain the universe?
copernicus
