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Colliding galaxies provide a Hubble harbinger of Halloween

28 October 2019 Astronomy Now

A ghostly “head” stares out from the depths of space in this Hubble Space Telescope image of two galaxies crashing into each other 704 light years away, a captivating harbinger of Halloween. The photo was captured in an ongoing survey of interacting galaxies to learn more about how such systems evolve.

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A ringside seat for a slow-motion galactic train wreck

8 March 2018 William Harwood

The Hubble Space Telescope captures a snapshot of a collision between two galaxies 350 million light years away in the constellation Cetus, giving astronomers a ringside seat to a slow-motion merger that eventually will result in a single combined galaxy. Gravitational interactions are distorting the barred spirals, ripping away stars and dust.

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The Atoms for Peace

24 December 2015 Keith Cooper

Some 220 million light years away lies this wreckage of a billion-year old cosmic collision, formed from two galaxies that crashed into one another and merged.

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Celestial firework marks nearest galaxy collision

16 August 2015 Astronomy Now

A spectacular galaxy collision has been discovered lurking behind the Milky Way, the closest such system ever found. “Kathryn’s Wheel” was found during a special wide field survey of the Southern Milky Way with the UK Schmidt Telescope in Australia. Such systems are very rare and arise from “bull’s-eye” collisions between two galaxies of similar mass.