What is Hubble’s Law Quizlet

What is Hubble’s Law

The work of Edwin Hubble and his team was dedicated to the discovery of a hitherto unknown universe. However, they also discovered that the universe is so big that our galaxy, the Milky Way, appears very small in comparison to it. Hubble’s Law was named after him as it was discovered by a team of astronomers led by Edwin Hubble and Albert Einstein published in 1935.

Hubble’s Law states that the farther away an object is from us, the larger it appears to be compared with objects closer to us. This result was first noticed by astrophysicist Edwin Hubble in 1929. Although originally postulated by Einstein and then independently confirmed by many other astronomers, this law has since been extended and refined with further observations and mathematical modeling.[1]

Utilizing a computer program called Cosmological Simulations (COSMOS) which allows for much greater accuracy than standard methods such as observations from space satellites or telescopes on Earth, scientists have been able to measure distances to extremely distant objects like quasars far beyond our galaxy—objects which are believed to be powered by neutron stars that are collapsing under incredible extreme pressure. As a result of these observations, they were able to determine how the universe is expanding.[2]

History of Hubble’s Law

in the late 1950s, Edwin Hubble discovered that the rate of expansion of the universe was accelerating. At first, it was thought that this meant that there must be a force at work slowing down the expansion; or a black hole or something like that. But later on, it became clear that there was no such force and this led to one of the biggest discoveries in science: the general theory of relativity.

This followed another early discovery: Einstein’s field equations. Feynman’s original paper had used them to describe how light propagates through spacetime and showed how they should apply to the matter as well. Einstein later revealed an assumption he made about how electromagnetic waves travel through space-time called “Hubble’s law”:

This is due to the way light interacts with matter in three-dimensional space-time — basically, if you squeeze an object in two dimensions (say, a basketball), it will expand outwards and expand into a sphere (which is also called “Hubble’s law”). And just as there are different kinds of waves depending on what kind of waves they are — electromagnetic waves being one example — there are different kinds of gravity depending on what kind of forces they are affected by.

Explanation of Hubble’s Law

Hubble’s law states that the amount of mass in a galaxy is proportional to the distance from the galaxy’s center. The original discovery was made by Edwin Hubble (1904-1953), who used radio waves to measure distances to galaxies and eventually discovered that they were expanding. The Hubble expansion was named after him, though he never actually said it.

The formula for this expansion is:

X = arctan(1 + x^2)^2

where X is the distance from the center of the galaxy (in parsecs), and arctan(1 + x^2)^2 is a constant.

The value of x depends on your choice of units and even how you measure distance (such as light-years or parsecs). In general, though, your choice should be between light-years and parsecs. It would be quite wrong to have units that are only half as long or half as far; there will always be some difference in the measurement with which you choose to measure it, even if you use the same unit! In fact, when measuring the distance with different units, you can generally expect that there will be a difference in whether you use arcminutes or arcseconds — this is because if both values are equally accurate (they’re both 1 arcminutes), then they both are equally inaccurate at exactly one minute each (they’re now 1/60th of an arcminute).

Applications of Hubble’s Law

When it comes to astronomy, the universe is a mystery. No one knows why stars exist and where they come from. But we do know what is going on. And we also know that the predictions of Einstein’s general relativity theory (which describes everything in our universe) are absolutely correct.

Hubble’s law states something very simple:

“The mass of a black hole scales with the square of the radius.”

You may have heard about this in physics class — or you may have heard about it and don’t believe it because you think you already understand relativity, but according to this law, all objects with mass accelerate towards objects with more mass. As Einstein put it: “If there is any generalization which does not involve special relativity, then I am completely unable to see why this should not hold for the case now under consideration.”

The law refers to Newton’s third law: “For every action, there is an equal and opposite reaction.”

In other words, if a star has a large amount of mass, then its gravitational pull will cause it to fall towards another star that has more mass. If two stars are at a significant distance apart (perhaps because they orbit each other), then their gravity will cause them to move closer together as time progresses (this would be called “the tidal effect”).

At some point in time when they are close enough together (around the speed of light or faster), they will come into contact and start accelerating towards each other until eventually, they crash into each other. And as long as nothing else happens — namely an event that would cause them to collide head-on — then these two stars will continue accelerating towards each other until finally coming into contact; this collision will accelerate them even further until finally reaching the speed of light or faster which is where Hubble’s law applies (a star will continue slowing down until it reaches this speed).

The slowing down process can continue forever — since nothing can stop acceleration once you get past the speed of light — but once you reach this speed, no matter how fast you go up or down, you always keep going up and/or going down at exactly the same rate as before. And since nothing can ever slow down unless everything else stops too – so long as things keep moving at exactly the same rate – that means that if anything changes at all, everything else must be going backward at exactly the same rate too! This means that if anything moves slower than everything else moves then nothing else can


For almost 50 years, astronomers have been using the Hubble Space Telescope to measure distances to the farthest possible objects in space. But what exactly is the distance to that object?

The answer depends on which constellation you’re talking about. The center of the Milky Way is roughly 1.5 million light-years away, while Parallax is only 30 light-years away. The distance between those two objects depends a lot on your location and the direction you look at them from if you’re looking at them from Sun-facing Earth, it looks like we’re farther away than we are — even though we are not!

To put it another way: the distance from Earth to a point in space depends on where you are and how far you look from Earth.

And that explains why scientists were so surprised when they found out how much more distant some of these objects were than they thought.

Hubble’s law has been known for decades — since it was first published in 1966 by astronomer Edwin Holmes Hubble – but it’s only now that scientists can finally correlate these measurements with our knowledge of space and time.

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