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by Staff Writers
Washington DC (SPX) May 16, 2013
When we look into the distant cosmos, the great majority of the objects we see are galaxies: immense gatherings of stars, planets, gas, dust, and dark matter, showing up in all kind of shapes.
This Hubble picture registers several, but the galaxy catalogued as 2MASX J05210136-2521450 stands out at a glance due to its interesting shape.
This object is an ultraluminous infrared galaxy which emits a tremendous amount of light at infrared wavelengths.
Scientists connect this to intense star formation activity, triggered by a collision between two interacting galaxies.
The merging process has left its signs: 2MASX J05210136-2521450 presents a single, bright nucleus and a spectacular outer structure that consists of a one-sided extension of the inner arms, with a tidal tail heading in the opposite direction, formed from material ripped out from the merging galaxies by gravitational forces.
The image is a combination of exposures taken by Hubble's Advanced Camera for Surveys, using near-infrared and visible light.
Hubble at NASA
Space Telescope News and Technology at Skynightly.com
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