As far as we can see, all mass (substance, material stuff) in the universe is
equally affected by gravity, and behaves according to the same simple law
of it.
Sir Isaac Newton is credited with discovering the law of gravity. He formulated the law of universal gravitation, which explains the force of gravity acting between all objects in the universe.
The evidence for Hubble's Law, which shows the relationship between distance and recession velocity of galaxies, was collected through observing the redshift of light from galaxies. Astronomers used spectroscopy to measure the redshift of galaxies, which is caused by the Doppler effect as the galaxies move away from us. By studying the redshift of galaxies at different distances, astronomers were able to support the idea that the universe is expanding.
Edwin Hubble noticed that galaxies are moving away from us in all directions. This observation led to the conclusion that the universe is expanding, which is now known as Hubble's Law.
We can't be sure. The only thing we know for sure is that it could be explained asthe speed with which that galaxy is receding from us. If that's actually the causeof the red shift, then from all the red shifts that we observe, we have to concludethat all of the distant galaxies are receding from us, and the farther away one isalready, the faster it's receding. If all of that is true, then the whole universe isexpanding. This is the research that made Hubble famous.Well said, but there is another reason. Maybe the light is coming from a large star (gravity hole, red shift due to gravity).
The one who discovered the Law Of Gravity is SIR ISAAC NEWTON
That is what has been observed, except that spiral galaxies rotate faster than would be expected based on the matter we can see. Thus we infer the existence of dark matter in the rims of these galaxies. An alternative hypothesis is that something is terribly wrong with our theory of gravity. To the best of our knowledge the rules of physics are the same no matter where you go.
Gravity is the attractive force that exists between all objects with mass. It is responsible for keeping celestial bodies such as planets, stars, and galaxies in motion and is described by Isaac Newton's law of universal gravitation.
This calculation is based on the fact that we can measure the lights emitted during an explosion of a supernova in the Universe .The red light spectrum measured during this explosion , among others , indicate that the galaxies are accelerating away from each other at a higher speed . But the big question is why ? Why is the Universe expanding and with that we mean why are the bodies within the Universe moving faster and faster towards the unknown . The answer this question we have to use two methods. First , the effect of gravity within the Universe on all bodies that is in the space like Galaxies and by using a common sense approach towards this complex material . The expansion of the Universe is thanks to the force of gravity , the same gravity we experience on earth but at a much bigger scale. So big that we as humans can not understand how this is possible or where it is originated . Based on my theory, I can inform that the galaxies are accelerating faster and faster as they approach the what I call , the gravity source. The farther the galaxies are from us ( the Earth ) , the faster they are moving away from us. Why ? Because these galaxies are approaching the gravity source. Some call this gravity source, dark matter ( they use this name because they don't know what it is ) . A galaxies does not move on their own energy in the Universe, no...the galaxies use the energy of this gravity source as the fuel to spin and move them into the space of the Universe. All galaxies are moving to the same target. It is not so that one galaxy goes left and the other one goes right. No, in the Universe the law of gravity rules and it works in a constant and organized way .In our solar system the gravity source is our Sun. Thanks to the Sun our planets can rotate around the Sun due to the sun's gravity energy . It is this same type of gravity energy that makes our galaxies spin and move . Again , the farther the galaxies are, the faster they are accelerating because they are attracted by the gravity field of this gravity source. There is no other theory that can proof this one to be wrong. It is the only logical explanation why the Universe is expanding . So, the next question is what is this gravity source that is responsible for the expansion of the Universe made of ? Where is it located within our Universe ? I will answer this in my next answer it session . Greg Falconi
i think it nota law because a law is a system of laws that we have to fallow and a theeoryis a hypothus of data
Sir Isaac Newton is credited with discovering the law of gravity. He formulated the law of universal gravitation, which explains the force of gravity acting between all objects in the universe.
All objects have gravity and gravity depends on the mass of an object and the distance between the object.
Gravity is the force of attraction that exists between all objects with mass. It is responsible for keeping planets in orbit around the sun, objects falling to the ground, and the formation of stars, galaxies, and the universe. Isaac Newton first described gravity in his law of universal gravitation.
All objects have gravity and gravity depends on the mass of an object and the distance between the object.
nothing! its all good its the law of gravity!
is that the force of gravity acts between all objects in the universe
is that the force of gravity acts between all objects in the universe
The evidence for Hubble's Law, which shows the relationship between distance and recession velocity of galaxies, was collected through observing the redshift of light from galaxies. Astronomers used spectroscopy to measure the redshift of galaxies, which is caused by the Doppler effect as the galaxies move away from us. By studying the redshift of galaxies at different distances, astronomers were able to support the idea that the universe is expanding.