Friday, December 14, 2018
Contact us    |    Advertise    |   Help    |   Cookie Policy    |   Privacy Policy    RSS icon Twitter icon Facebook icon
    Home  ·  News  ·  Forum  ·  Stories  ·  Image Gallery  ·  Columns  ·  Encyclopedia  ·  Videos
Find: in

Andromeda killed and ate our galactic sibling


Posted on Monday, 23 July, 2018 | Comment icon 4 comments

Andromeda has quite the appetite. Image Credit: NASA/JPL-Caltech
Scientists have discovered that the Milky Way once had a sibling that was consumed by our neighboring galaxy.
In a new study, scientists reconstructed events that occurred two billion years ago by conducting a detailed survey of the stars found in the faint halo which surrounds the nearby Andromeda galaxy.

Originally thought to have been built up from multiple smaller galaxies over a long period of time, this mysterious halo is now believed to have formed primarily from the remnants of M32 - a satellite galaxy that was once a similar size to our own before its outer layers were consumed.

"It's kind of like a child eating dinner, and then looking on the floor afterwards and finding breadcrumbs all around," said postdoctoral researcher Richard D'Souza from the University of Michigan.

"You know what's been eaten."

After it was cannibalized, M32 was reduced to little more than a small, dense core.

"It was shocking to realise that the Milky Way had a large sibling and we never knew about it," said study co-author Eric Bell. "Astronomers have been studying the Local Group - the Milky Way, Andromeda and their companions - for so long."

Source: The Guardian | Comments (4)

Tags: M32, Galaxy

Recent comments on this story
Comment icon #1 Posted by NicoletteS on 23 July, 2018, 20:07
They sure do a lot to push that gross metaphor. I'd like to think that m32 was just attracted to Andromeda and came over for a visit and left shoes outside the door... But maybe that's not quite as good of an analogy Sorry I guess after the depiction of a cannibalistic kid eating our neighbor and finding the remaining crumbs on the floor it's hard to Pay attention to what they meant.         
Comment icon #2 Posted by Orphalesion on 23 July, 2018, 20:10
Andromeda should be careful, that m23 will go straight to her hips!
Comment icon #3 Posted by third_eye on 23 July, 2018, 20:30
Since we're on the hips, I'd like to see the rest ... ~
Comment icon #4 Posted by L.A.T.1961 on 23 July, 2018, 21:32
Our Milky Way has a date with Andromeda, in a few billion years.     


Please Login or Register to post a comment.


  On the forums
'Dancing robot' turns out to be a man in a suit
12-13-2018
A recent segment on Russian state TV mistakenly reported on a 'high-tech robot' that was anything but.
Man claims to eat only once every three months
12-13-2018
'Breatharian' Khai Ho maintains that he is able to survive for months at a time on little more than air and sunlight.
Man photographs UFO over Kangaroo Island
12-13-2018
Andrew Isaacson had been visiting Australia's Cape Willoughby Lighthouse when the picture was taken.
CIA experimented with mind-controlled dogs
12-12-2018
Newly declassified documents have revealed the CIA's efforts to control dogs through electrical brain stimulation.
Featured Videos
Gallery icon 
Humboldt squid takes a bite
Posted 12-10-2018 | 1 comment
A look at what happened when Steve Backshall met a rather large Humboldt squid.
 
Rainbow jelly tennis
Posted 12-3-2018 | 0 comments
The Slo Mo Guys attempt another ridiculous slow motion experiment involving jelly.
 
Progress launch timelapse
Posted 11-24-2018 | 0 comments
A look at the recent launch of the Russian Progress MS-10 cargo spacecraft.
 
 View: More videos
Stories & Experiences
My name is whispered
11-9-2018 | Wish not to disclose
 
Strange numbers on arm
11-9-2018 | Charlotte, NC
 
Two experiences
10-31-2018 | Pryor, OK
 
Various experiences
10-31-2018 | Californiia
 
A transparent figure
10-31-2018 | Nigeria
 
My childhood haunting
10-29-2018 | Cincinnati, Ohio
 
Orange, hovering, atom-like figure
10-25-2018 | West kelowna
 
I saw a strange man
10-25-2018 | Croatia
 
Spontaneous exorcisms
10-25-2018 | Canada
 
Two children who didn't age
10-24-2018 | United States New York
 

         More stories | Send us your story
 
Top   |  Home   |   Forum   |   News   |   Image Gallery   |  Columns   |   Encyclopedia   |   Videos   |   Polls
UM-X 10.712 Unexplained-Mysteries.com (c) 2001-2018
Terms   |   Privacy Policy   |   Cookies   |   Advertise   |   Contact   |   Help/FAQ