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The red shifts show the galaxies are under centripetal force and the red shift indicates the centrifugal force. This indicates that the universe is in continuity, the centripetal and centrifugal forces are in balance.

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Why do light waves from distant objects appear to be stretched?

Light waves from distant objects appear stretched due to the expansion of the universe, known as cosmological redshift. As galaxies move away from us, the wavelength of the light they emit is stretched, causing it to appear more redshifted. This phenomenon allows scientists to determine the distance and speed of objects in the universe.


What theory do many scientists accept as an explanation for the origin of the universe?

Many scientists accept the Big Bang theory as the explanation for the origin of the universe. This theory proposes that the universe began as a singularity approximately 13.8 billion years ago, and has been expanding ever since. The evidence for the Big Bang includes the cosmic microwave background radiation and the observed redshift of distant galaxies.


How is Olbers' paradox resolved in the context of the expanding universe and the presence of cosmic microwave background radiation?

Olbers' paradox is resolved in the context of the expanding universe and the presence of cosmic microwave background radiation by understanding that the universe is not infinite in age or size. The expansion of the universe causes light from distant stars to redshift, making them fainter and cooler, and the cosmic microwave background radiation fills the universe with a uniform glow, accounting for the darkness of the night sky.


What is the key piece of evidence showing that the expansion of the universe is accelerating?

The key piece of evidence showing that the expansion of the universe is accelerating is the observation of distant supernovae, which revealed that they are moving away from us at an increasing rate. This discovery, made in the late 1990s, provided strong support for the theory of dark energy driving the accelerated expansion of the universe.


What is the relationship between redshift and distance in astronomy?

In astronomy, redshift is the phenomenon where light from distant objects appears shifted towards longer wavelengths. This shift is directly related to the distance of the object from Earth, with objects that are farther away exhibiting higher redshift values. This relationship is known as Hubble's Law, which states that the velocity at which an object is moving away from us is proportional to its distance.

Related Questions

What does the redshift tell us about the universe?

Redshift is a phenomenon where light from distant galaxies appears redder than expected due to the expansion of the universe. It tells us that the universe is expanding and provides evidence for the Big Bang theory. By studying the redshift of galaxies, scientists can understand the rate of expansion and the age of the universe.


Why are all distant galaxies redshift?

The redshift of distant galaxies is due to the expansion of the universe. As galaxies move away from us, the light they emit is stretched to longer wavelengths, shifting them towards the red end of the spectrum. This phenomenon is known as cosmological redshift and is a key piece of evidence supporting the Big Bang theory.


What is the best evidence the universe is still expanding?

The redshift of distant galaxies, and the fact that the degree of redshift depends on the distance between us and those galaxies. What we observe can only be explained by Hubble Expansion.


How do we know that the Universe is expanding?

We know the universe is expanding because we can measure the redshift of distant galaxies. This redshift indicates that galaxies are moving away from us, and the further away a galaxy is, the faster it is moving away. This observation supports the idea of an expanding universe.


What is evidence that a quasar is distant?

a large redshift in the spectrum of the quasar.


What are the strengths and weaknesses of the redshift theory?

cons quasars have have large red shift that suggest they are far away as distant galexies some quazars with very high redshifts appear to be interacting with other galexies that have lesser redshift which would suggest that quazars have ann in trensic redshift pros its perfect evidence to show that the universe is expanding


Do you believe that the universe is still expanding?

Yes, scientific evidence, such as redshift measurements of distant galaxies, indicates that the universe is still expanding. This expansion is believed to be accelerating due to dark energy, a mysterious force that counteracts gravity at large distances.


What evidence is there that the universe is getting bigger?

The main evidence that the universe is expanding comes from observations of the redshift of distant galaxies. This redshift indicates that galaxies are moving away from each other, which suggests that the universe is getting bigger. Additionally, measurements of the cosmic microwave background radiation also support the idea of an expanding universe.


How did you discover the universe is expanding?

This can be seen from the redshift of distant galaxies - normally attributed to the Doppler effect.


Is there any proof that the universe is changing?

Yes, there is proof. The universal redshift that appears in all distant electromagnetic spectra proves that the universe is expanding.


What shift did hubble see that supported the big bang theory?

Redshift; the generally accepted explanation for the redshift of distant galaxies is that it is cosmological redshift, caused by the expansion of the Universe. This is somewhat related to the idea of the Doppler effect.


What do th spectra of distant galaxies collected today say about hubbles original findings?

The spectra of distant galaxies collected today support Hubble's original findings by showing that galaxies are moving away from us, indicating an expanding universe. The redshift in the spectra is evidence of this cosmic expansion, consistent with Hubble's discovery of the relationship between distance and redshift.