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Collision of galaxies, images taken by hubble

The interaction between galaxies is an on going process in universe. However the merging of big galaxies with each other on average once over the past 9 billion years. But Small galaxies were coalescing with large galaxies more frequently. In fact, our own Milky Way galaxy had several such mergers with small galaxies in its recent past.

In the combination of galaxies there is no collision of stars with eath other, it is the dust and other material which collapse and billions of stars are born, mostly in groups and clusters of stars.

Some of the images of colliding galaxies taken by hubble


This is image of a pair of interacting galaxies called Arp 273.
The distorted shape of the larger of the two galaxies shows signs of tidal interactions with the smaller of the two. It is thought that the smaller galaxy has actually passed through the larger one.
This nearly 300 million light years away from earth. And a part of Constellation "Andromeda"


Hubble has captured a spectacular pair of galaxies engaged in a celestial dance of cat and mouse, named "Mice Galaxies, NGC 4676"
Located 300 million light-years away in the constellation Coma Berenices, the colliding galaxies have been nicknamed "The Mice" because of the long tails of stars and gas emanating from each galaxy. Otherwise known as NGC 4676, the pair will eventually merge into a single giant galaxy.



This is image of the Antennae galaxies, "NGC4038, NGC4039".
This is 75 million light years away from earth and a part of Constellation "Corvus"
 As the two galaxies smash together, billions of stars are born, mostly in groups and clusters of stars. The brightest and most compact of these are called super star clusters.



Arp 148 is the staggering aftermath of an encounter between two galaxies, resulting in a ring-shaped galaxy and a long-tailed companion.
The collision between the two parent galaxies produced a shockwave effect that first drew matter into the centre and then caused it to propagate outwards in a ring. The elongated companion perpendicular to the ring suggests that Arp 148 is a unique snapshot of an ongoing collision.

Arp 148 is nicknamed "Mayall's object" and is located in the constellation of Ursa Major, the Great Bear, approximately 500 million light-years away. This interacting pair of galaxies is included in Arp's catalogue of peculiar galaxies as number 148.



This image is a pair of interacting galaxies "IC 2163, NGC 2207".
This is nearly 110 million light years away from earth and belong to Constellation "Canis Major".
In the direction of the constellation Canis Major, two spiral galaxies pass by each other like majestic ships in the night. 

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