Home > Astronomy, Cosmology, Galaxies, General Astronomy, Milky Way > The Milky Way Now Has A Twin (Or Two)

The Milky Way Now Has A Twin (Or Two)

Image Credit: Dr Aaron Robotham, ICRAR/St Andrews using GAMA data

The Milky Way is a fairly typical galaxy on its own, but when paired with its close neighbours – the Magellanic Clouds – it is very rare, and could have been one of a kind, until a survey of our local Universe found another two examples just like us.

Astronomer Dr Aaron Robotham, jointly from the University of Western Australia node of the International Centre for Radio Astronomy Research (ICRAR) and the University of St Andrews in Scotland, searched for groups of galaxies similar to ours. “We’ve never found another galaxy system like the Milky Way before, which is not surprising considering how hard they are to spot! It’s only recently become possible to do the type of analysis that lets us find similar groups,” says Dr Robotham.

“We found about 3% of galaxies similar to the Milky Way have companion galaxies like the Magellanic Clouds, which is very rare indeed. In total we found 14 galaxy systems that are similar to ours, with two of those being an almost exact match,” says Dr Robotham.

Full Story: http://www.icrar.org/news/news_items/media-releases/the-milky-way-now-has-a-twin-or-two

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