Also known as Messier 33 (M33), this galaxy is the third largest in our local group, following Andromeda and the Milky Way. Under very dark skies, the Triangulum Galaxy can be visible to the naked eye ...
Edwin Hubble initially identified approximately 11-12 galaxies within the Local Group, a term he coined, while current estimations place the number of members at 125 or more. The Local Group's total ...
An analysis of star movements from the Gaia spacecraft reveals that the Small Magellanic Cloud — a satellite galaxy bound to the Milky Way — is being torn apart by its larger neighbor.