The world's most complex observatory opened today in the Chilean Andes.
Here are some of the photos it captured:
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Antennae Galaxies composite of ALMA and Hubble observations.
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ALMA view of the Antennae Galaxies.
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Antennae Galaxies, side-by-side comparison of ALMA and visible-light observations from the ESO Very Large Telescope.
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Wide-field view of the region around the Antennae Galaxies.
Courtesy of European Southern Observatory
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