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If our universe is expanding it means a higher gravitational force is coming from outside, than why Milky way galaxy and Andromeda galaxy are coming close to each other?
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here is ur answer mate........
Hubble went on to discover the expanding universe where galaxies are rushing away from us, but it has long been known that M31 is moving toward the Milky Way at about 250,000 miles per hour. That is fast enough to travel from here to the moon in one hour........
There are other reasons for red shift in light. Light propagates as spherical waves of energy which encounters millions of objects which absorb its energy. Light also pass through fields of gravity while passing through cosmic web and filaments. Light also become orphan right after its birth. It cannot maintain its speed and energy. It gets red shifted. It is the property of light itself. Light gets blue or red shifted. This is the evidence that light does get tired.
What else is the evidence that the Universe is expanding? Some points out the background radiation as left over of the Big Bang. This is not correct. Light did not exist at that time. There were no particles like electrons, protons, neutrons, photons back then in that plasma. Light appeared after 370,000 millions years after that. NASA took an image of this BGR just recently. It appears very smooth. Temperature is almost the same......... throughout the Universe. This image is taken after 13.8 billion years after the Big Bang. As they said, space was expanding since then. Even so, this radiation is almost without any variation. Very strange. When we the Universe, we see fully formed planets, stars, galaxies, cosmic web, filaments, voids, etc. Why do we see these fully formed objects? Actually, we should see only evenly distributed particles through out the Universe. These objects cannot form in 13.8 billion years ( age of the Universe is only 13.8 billion years). It is impossible. There are other reasons for BGR. BGR is not left over radiation of the Big Bang. The Universe is not expanding. To counteract , they came up with theory of hyper inflation. Again, we cannot plug a big hole with another big hole........
hope this helps u mate.......
plz mark me as brainlist plz plz plz plz plz plz plz plz.... ♥
Hubble went on to discover the expanding universe where galaxies are rushing away from us, but it has long been known that M31 is moving toward the Milky Way at about 250,000 miles per hour. That is fast enough to travel from here to the moon in one hour........
There are other reasons for red shift in light. Light propagates as spherical waves of energy which encounters millions of objects which absorb its energy. Light also pass through fields of gravity while passing through cosmic web and filaments. Light also become orphan right after its birth. It cannot maintain its speed and energy. It gets red shifted. It is the property of light itself. Light gets blue or red shifted. This is the evidence that light does get tired.
What else is the evidence that the Universe is expanding? Some points out the background radiation as left over of the Big Bang. This is not correct. Light did not exist at that time. There were no particles like electrons, protons, neutrons, photons back then in that plasma. Light appeared after 370,000 millions years after that. NASA took an image of this BGR just recently. It appears very smooth. Temperature is almost the same......... throughout the Universe. This image is taken after 13.8 billion years after the Big Bang. As they said, space was expanding since then. Even so, this radiation is almost without any variation. Very strange. When we the Universe, we see fully formed planets, stars, galaxies, cosmic web, filaments, voids, etc. Why do we see these fully formed objects? Actually, we should see only evenly distributed particles through out the Universe. These objects cannot form in 13.8 billion years ( age of the Universe is only 13.8 billion years). It is impossible. There are other reasons for BGR. BGR is not left over radiation of the Big Bang. The Universe is not expanding. To counteract , they came up with theory of hyper inflation. Again, we cannot plug a big hole with another big hole........
hope this helps u mate.......
plz mark me as brainlist plz plz plz plz plz plz plz plz.... ♥
DaringRobber:
let me know another ans also
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First, gravity :
➡️Since, both the galaxies have huge masses and we know that mass causes gravity, the galaxies will try to move towards each other with an accelerated motion.
Second, force due to dark energy :
▶️The empty space between the galaxies is actually not empty. It is presumed to contain an energy known as the dark energy which causes the spacial expansion and hence, is responsible for the motion of galaxies moving away from each other.
In the case of the Milky Way and the Andromeda, the force of gravity overcomes the effect of the latter, and hence lets the galaxies continue their inertial motion, i.e. COLLISION!!
Note * already more then 4 dwarf galaxies are merge in milky way.
➡️Since, both the galaxies have huge masses and we know that mass causes gravity, the galaxies will try to move towards each other with an accelerated motion.
Second, force due to dark energy :
▶️The empty space between the galaxies is actually not empty. It is presumed to contain an energy known as the dark energy which causes the spacial expansion and hence, is responsible for the motion of galaxies moving away from each other.
In the case of the Milky Way and the Andromeda, the force of gravity overcomes the effect of the latter, and hence lets the galaxies continue their inertial motion, i.e. COLLISION!!
Note * already more then 4 dwarf galaxies are merge in milky way.
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