Hubble spotted a ghost-like galaxy made almost entirely of invisible dark matter
The ultra-diffuse galaxy NGC 1052-DF2 is a cosmic anomaly that appears transparent because it contains roughly 250 times fewer stars than expected for its massive size.
The Hubble Space Telescope captured images of a ghostly galaxy called NGC 1052-DF2, which is as large as our Milky Way but contains almost no visible stars. This rare celestial object is classified as an ultra-diffuse galaxy because it is so thin that distant galaxies can be seen right through it.
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