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SlideshowReport

Interacting and Colliding Galaxies

Description
Interacting and Colliding Galaxies
(a) Pairs of colliding galaxies often exhibit long “antennae” of stars ejected by
the collision. This particular system is known as NGC 4676 or “the Mice”
(because of its tails of stars and gas). It is 300 million ly from Earth
in the constellation Coma Berenices. The collision has stimulated a firestorm
of new star formation, as can be seen in the bright blue regions. Mass can
also be seen flowing between the two galaxies, which will eventually merge.
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