This deep sky image (left) includes a star cluster (right) that may be the faintest and smallest galaxy ever observed.
CFHT/S. Gwynne (right) / S. Smith (left)
An incredibly tiny cluster of stars orbiting the Milky Way without breaking apart could mean it's the least massive galaxy ever discovered. there is. Although it only contains about 57 stars, it may be chock-full of dark matter.
This strange star cluster, called Ursa Major III/UNIONS 1, orbits a galaxy about 33,000 light-years from our solar system. It is the smallest and faintest satellite in the Milky Way galaxy…
Source: www.newscientist.com
