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What Happens When Galaxies Collide?

Dragon
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What Happens When Galaxies Collide? Empty What Happens When Galaxies Collide?

Post by Dragon Fri Aug 06, 2021 2:58 am

Two galaxies are drawn together by forces they can't see but they can feel. It's a mutual gravitational attraction.

It's inevitable: Inch by inch, light-year by light-year, as the cosmic clock ticks on through the eons, the galaxies grow closer.

They can't help it; their motion was set by tiny instabilities billions of years ago that have only grown stronger in the eons since.

As they near each other, the galaxies begin to embrace as thin tendrils of gas and stars reaching out through the tenuous medium between them.

Then, they collide.

These two massive structures, each 100,000 light-years across, host hundreds of billions of stars.

During the merger, 100 trillion suns' worth of material collide, mix and ignite.


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What Happens When Galaxies Collide? 334pu7m
Dragon
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What Happens When Galaxies Collide? Empty Re: What Happens When Galaxies Collide?

Post by Dragon Fri Aug 06, 2021 3:00 am

What Happens When Galaxies Collide? F93NmQT4w22hurRUHtWfFZ-1024-80.jpg
(Image credit: NASA, ESA, SAO, CXC, JPL-Caltech, and STScI

This beautiful new composite image of two colliding galaxies was released by NASA's Great Observatories.

The collision between the Antennae galaxies, which are located about 62 million light-years from Earth, began more than 100 million years ago and is still occurring.


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What Happens When Galaxies Collide? 334pu7m
Dragon
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What Happens When Galaxies Collide? Empty Re: What Happens When Galaxies Collide?

Post by Dragon Fri Aug 06, 2021 3:01 am

What Happens When Galaxies Collide? VusXy3BZBmYbbPLnR7zNx-970-80
(Image credit: NASA, ESA, the Hubble Heritage (STScI/AURA)-ESA/Hubble Collaboration, and A. Evans (University of Virginia, Charlottesville/NRAO/Stony Brook University))

Arp 148 is the staggering aftermath of an encounter between two galaxies, resulting in a ring-shaped galaxy and a long-tailed companion.


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What Happens When Galaxies Collide? 334pu7m
Dragon
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What Happens When Galaxies Collide? Empty Re: What Happens When Galaxies Collide?

Post by Dragon Fri Aug 06, 2021 3:04 am



Distant Galaxies


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What Happens When Galaxies Collide? 334pu7m

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