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Never-before-seen galaxy spotted orbiting the Milky Way
New Scientist ^ | 14 Apr, 2016 | Ken Croswell

Posted on 04/15/2016 7:44:48 AM PDT by MtnClimber

The galaxy’s empire has a new colony. Astronomers have detected a dwarf galaxy orbiting the Milky Way whose span stretches farther than nearly all other Milky Way satellites. It may belong to a small group of galaxies that is falling into our own.

Giant galaxies like the Milky Way grew large when smaller galaxies merged, according to simulations. The simulations also suggest that whole groups of galaxies can fall into a single giant at the same time. The best examples in our cosmic neighbourhood are the Large and Small Magellanic Clouds, the Milky Way’s two brightest satellites, which probably orbit each other.

Orbiting galaxies About four dozen known galaxies orbit our own. The largest in terms of breadth is the Sagittarius dwarf, discovered in 1994 – but it’s big only because our galaxy’s gravity is ripping it apart. The next two largest are the Magellanic Clouds.

Now, Gabriel Torrealba at the University of Cambridge and his colleagues have found a new galaxy about 380,000 light years away in the constellation Crater. “It’s the fourth largest satellite of the Milky Way,” Torrealba says.

Named the Crater 2 dwarf, the new galaxy is not apparent to human eyes, though individual stars within the galaxy are visible. The team were only able to find it this January by using a computer to look for over-densities of stars in data from images taken by a telescope in Chile.


TOPICS: Science
KEYWORDS: astronomy; blindedmewithscience; galaxy; milkyway; science; xplanets
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1 posted on 04/15/2016 7:44:48 AM PDT by MtnClimber
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To: MtnClimber

Are we causing universal warming?


2 posted on 04/15/2016 7:45:31 AM PDT by MtnClimber (For photos of Colorado scenery and wildlife, click on my screen name for my FR home page.)
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To: MtnClimber

Excellent!!!

My super galactic attractor beam is working!!!


3 posted on 04/15/2016 7:48:05 AM PDT by DannyTN
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To: MtnClimber
The galaxy's empire has a new colony.

J-school + Marx + Star Wars

4 posted on 04/15/2016 7:48:56 AM PDT by ClearCase_guy (Harvey Dent -- can he be trusted?)
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To: MtnClimber
dwarf galaxy orbiting the Milky Way

You can't say dwarf galaxy. That's insulting to small galaxies.

That is a microaggression.

5 posted on 04/15/2016 7:49:49 AM PDT by RoosterRedux (When a man loves cats, I am his friend and comrade, without further introduction. - Mark Twain)
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To: RoosterRedux

And GALaxy is sexist! I demand guyaxies!


6 posted on 04/15/2016 7:53:21 AM PDT by JoeDetweiler
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To: MtnClimber
The largest in terms of breadth is the Sagittarius dwarf...

The largest is a dwarf?

7 posted on 04/15/2016 7:54:21 AM PDT by COBOL2Java (The GOPe deserve nothing more than a middle finger)
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To: MtnClimber

It is the Galaxy X Louie Farrakahn has warned us about.


8 posted on 04/15/2016 7:54:53 AM PDT by Slyfox (Donald Trump's First Principle is the Art of the Deal)
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To: MtnClimber

Is this because of global warming?


9 posted on 04/15/2016 7:56:39 AM PDT by Mr. K (Trump / ???)
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To: MtnClimber

Whatever happened to the TAU project? The one to send a telescope Thousands of Astronomical Units up out of the plane of the Milky Way? It would give us a clearer view of our own galaxy and hangers on and a good baseline for accurate triangulation.


10 posted on 04/15/2016 8:00:59 AM PDT by null and void ("when authority began inspiring contempt, it had stopped being authority" ~ H. Beam Piper)
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To: COBOL2Java; LesbianThespianGymnasticMidget
"The largest in terms of breadth is the Sagittarius dwarf..."

The largest is a dwarf?

Not just any dwarf, but a LesbianThespianGymnasticMidget!

11 posted on 04/15/2016 8:04:48 AM PDT by null and void ("when authority began inspiring contempt, it had stopped being authority" ~ H. Beam Piper)
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To: RoosterRedux
It's a breadth-challenged galaxy.

The light from that galaxy left it 380,000 years ago. Who knows what it looks like now? Maybe it has put on some weight since then.

12 posted on 04/15/2016 8:12:44 AM PDT by Verginius Rufus
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To: MtnClimber

I hope they don’t have a Illudium Q-36 Explosive Space Modulator.


13 posted on 04/15/2016 8:12:59 AM PDT by Resolute Conservative
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To: MtnClimber
 photo wedoomed.jpg
14 posted on 04/15/2016 8:28:26 AM PDT by dragonblustar
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To: null and void

“Whatever happened to the TAU project? The one to send a telescope Thousands of Astronomical Units up out of the plane of the Milky Way? It would give us a clearer view of our own galaxy and hangers on and a good baseline for accurate triangulation.”

In about 25,000 years. Maybe.


15 posted on 04/15/2016 8:40:04 AM PDT by buffaloguy
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To: MtnClimber

To prevent war, the galaxy is on Orion’s belt.


16 posted on 04/15/2016 8:51:24 AM PDT by aomagrat (Gun owners who vote for democrats are too stupid to own guns.)
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To: MtnClimber

It just snuck in there?


17 posted on 04/15/2016 11:30:23 AM PDT by minnesota_bound
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To: SunkenCiv

*ping*


18 posted on 04/15/2016 4:36:15 PM PDT by fieldmarshaldj (Resist We Much)
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To: fieldmarshaldj

Thanks! Saw it earlier and completely forgot it during a hunt through open tabs. This will be an X-Planets ping, and an extra to APoD.


19 posted on 04/15/2016 11:40:12 PM PDT by SunkenCiv (Here's to the day the forensics people scrape what's left of Putin off the ceiling of his limo.)
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To: Resolute Conservative
I hope they don’t have a Illudium Q-36 Explosive Space Modulator.

Don't worry, it was stolen my some Earth creature.

20 posted on 04/16/2016 12:36:34 AM PDT by uglybiker (nuh-nuh-nuh-nuh-nuh-nuh-nuh-nuh-nuh-nuh-nuh-nuh-nuh-nuh-nuh-nuh-BATMAN!)
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