Cracking the Enigma of the Invisible Galaxy.

Researchers from SISSA have used the ALMA interferometer to identify the main properties of a mysterious, distant celestial object that is forming stars 1000 times faster than the Milky Way. The young, compact galaxy is one-sixth the size of the present universe and contains large quantities of interstellar dust, making it almost invisible to even the most advanced instruments. The study offers valuable insights into galaxy formation and the study of other “dark” celestial bodies, and the use of gravitational lensing has allowed for the identification and study of about a hundred such objects so far.