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Astronomers Found a New Celestial Object: a GAS CLOUD Shrouded in DARK MATTER!| Linvo Talk

#AstronomyNews #ScienceEducation #Knowledge #Science #Universe #Cosmic #Astronomy #ScienceEducation #SciencePopularization #CosmicScience #cloud9 #darkmatter #hydrogenline #21centimeterline #RELHIC #missingsatellitesproblem #galaxy

Astronomers have discovered an entirely new celestial object: it is not a galaxy, yet it has a dark matter halo just like a galaxy. It contains no stars within, only neutral hydrogen gas with a mass millions of times that of the Sun. What makes this cloud of gas shrouded in dark matter so special? The story begins with an extremely faint signal.

[1] Gagandeep S. Anand, Alejandro Benítez-Llambay, et al. The First RELHIC? Cloud-9 is a Starless Gas Cloud*. The Astrophysical Journal Letters. 993(2). L55. (2025)

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