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Σάββατο 14 Ιανουαρίου 2017

What Happens When Galaxies Die?

             

What Happens When Galaxies Die?

Δημοσιεύτηκε στις 13 Ιαν 2017

About half of the galaxies in our universe are dead, but how exactly did that happen? How do galaxies die?

Why Are Most Galaxies Spiral Shaped? - https://youtu.be/aIUu5uMKB70
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Read More:
'Dead' Galaxy May Hide Dark Matter Surprise
http://www.seeker.com/dead-galaxy-may...
"While
measuring the speed of stars whirling around a nearby dwarf galaxy,
astronomers have realized that a reservoir of dark matter may be lurking
within."

Is our Milky Way galaxy a zombie, already dead and we don't know it?
http://phys.org/news/2016-01-milky-ga...
"Like
a zombie, the Milky Way galaxy may already be dead but it still keeps
going. Our galactic neighbor Andromeda almost certainly expired a few
billion years ago, but only recently started showing outward signs of
its demise."

Hubble Sees 'Ghost Light' From Dead Galaxies
https://www.nasa.gov/content/goddard/...
"NASA's
Hubble Space Telescope has picked up the faint, ghostly glow of stars
ejected from ancient galaxies that were gravitationally ripped apart
several billion years ago. The mayhem happened 4 billion light-years
away, inside an immense collection of nearly 500 galaxies nicknamed
"Pandora's Cluster," also known as Abell 2744."

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Written by: Trace Dominguez
ANAΡΤΗΣΗ ΑΠΟ ΤΟ YOUTUBE 15/1/2017








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