Colliding Galaxies Trigger Star Formation

A new image of two colliding galaxies - the Antennae galaxies, located about 62 million light years from Earth - are shown in this composite image from the Chandra X-ray Observatory, the Hubble Space Telescope, and the Spitzer Space Telescope.
credit : X-ray: NASA/CXC/SAO/J.DePasquale; IR: NASA/JP
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