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SPACE SCOPES
Hubble Tells a Tale of Galactic Collisions
by Staff Writers
Washington DC (SPX) May 16, 2013


Credit: ESA/Hubble and NASA. Acknowledgement: Luca Limatola. For a larger version of this image please go here.

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.

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Related Links
Hubble at NASA
Space Telescope News and Technology at Skynightly.com






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SPACE SCOPES
QandA on the Hubble Space Telescope with Jennifer Wiseman
Greenbelt MD (SPX) Apr 30, 2013
Jennifer Wiseman is the senior project scientist for the Hubble Space Telescope at NASA's Goddard Space Flight Center in Greenbelt, Md., where the mission is managed. The following questions and answers were provided in April 2013 about the history and the status of the Hubble. b>Can you provide some basic information about the Hubble? br> /b> The Hubble Space Telescope was launched ... read more


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