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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.

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Would an object have a greater gravitational pull closer or farther from earth?

An object have greater gravitational pull closer from earth. As we get farther from earth, the gravitational pull becomes weaker. That is why objects sufficiently away from the earth do not fall on it.


Why are objects in a car mirror closer than they appear?

There is a plane mirror on the driver's side and a convex mirror on the passenger's side. The reason only the passenger mirror is convex is because you are farther away from it. The angular view provided by farther mirror of the same physical size produces a similarly smaller reflected field of view. The convex mirror provides a larger field of view- one that should be comparable to the closer drivers mirror.


7 A system of drawing based on the idea that closer objects appear larger and distant objects appear smaller?

This concept is known as linear perspective, which is a technique used in art to create depth and realism by making objects closer to the viewer appear larger and objects farther away appear smaller. It is achieved by using converging lines that meet at a vanishing point on the horizon line.


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Yes, objects that are farther away than others will exhibit less parallax. Parallax is the apparent change in position of an object when viewed from different perspectives. The closer an object is, the greater its parallax when viewed from different angles.


Do galaxies farther go faster than ones closer?

Yes, in general, galaxies that are farther away from us tend to be moving away at faster speeds. This is due to the expansion of the universe, where the farther apart two objects are, the faster they appear to be moving away from each other. This phenomenon is described by Hubble's law.

Related Questions

When is there more gravitational energy?

There is more gravitational energy when two objects are closer together and less gravitational energy when they are farther apart. This is because the gravitational force between two objects is stronger when they are closer together and weaker when they are farther apart.


Do convex mirrors make things look closer or farther away?

farther away, for example the rear view mirrors in your car have a print on them saying "objects in mirror are closer than they appear"


Would an object have a greater gravitational pull closer or farther from earth?

An object have greater gravitational pull closer from earth. As we get farther from earth, the gravitational pull becomes weaker. That is why objects sufficiently away from the earth do not fall on it.


Why do objects that are farther look smaller?

Objects that are farther away appear smaller due to the phenomenon of perspective. As objects move away from the observer, the angle at which they are viewed decreases, making them appear smaller relative to closer objects. This is why distant objects seem to converge towards a vanishing point in the distance.


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Linear perspective is created by making closer objects appear larger than farther objects, proportionate to the distance between lines that recede towards a vanishing point on the horizon. Atmospheric perspective shows objects that are closer to the foreground with more detail than objects that are farther away. Realistic artworks normally use both.


Why does the moon appear to be as large as the sun when viewed from the earth?

The simple answer is that; it is closer. Thanks to forced perspective, smaller objects that are closer may look as big or even bigger than bigger objects that are farther away.


What does the sediment the is closer to mid ocean ridge compare to sediment that is farther away?

Sediment closer to mid-ocean ridges is typically younger, coarser, and consists of more volcanic material compared to sediment farther away. This is because the closer proximity to the ridge results in a higher input of freshly erupted material from the underlying volcanic activity.


What is a system in a drawing based on the idea that closer objects are smaller than farther away object?

linear perspective. Hope that help! :)


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You can add different objects to your presentation. Which option can make an object look closer or farther away than it actually is?

Adjusting the object's size can make it look closer or farther away than it actually is in a presentation. Making the object larger can make it appear closer, while making it smaller can create the illusion of distance.


What are the five cues that are under monocular cues?

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What varies with gravitational force?

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