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21 Jan 2017 9:05
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  •   Home > News > International

    New NASA image shows 'doomed duo' galaxies colliding

    NASA's Hubble Space Telescope captures an image two gas-rich spiral galaxies that approached each other too closely and are destructively merging into one.

    A new image of two gas-rich spiral galaxies colliding has been captured by NASA's Hubble Space Telescope with its Advanced Camera for Surveys.

    "This doomed duo approached one another too closely in the past, gravity causing them to affect and tug at each other and slowly, destructively, merge into one," NASA said in a statement.

    Located over 1 billion light-years away from Earth, the combined galaxies have been named IRAS 14348-1447, partially after its discoverer, the Infrared Astronomical Satellite (IRAS), NASA said in a statement.

    "It is one of the most gas-rich examples known of an ultraluminous infrared galaxy, a class of cosmic objects that shine characteristically — and incredibly — brightly in the infrared part of the spectrum," it said.

    "Almost 95 per cent of the energy emitted by IRAS 14348-1447 is in the far-infrared!"

    The space agency said the huge amount of molecular gas within IRAS 14348-1447, which fuels its emission, "undergoes a number of dynamical processes as it interacts and moves around".

    It is responsible for its whirling and "ethereal appearance", which create "prominent tails and wisps extending away from the main body of the galaxy", NASA said.


    © 2017 ABC Australian Broadcasting Corporation. All rights reserved

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