Astronomers may have spotted a new spiral arm of the Milky Way galaxy

Researchers have found a colossal filament of gas called Cattail at the edge of the galaxy – it could be a new spiral arm of the Milky Way, but we have no clue how it formed

Astronomers may have spotted a new spiral arm of the Milky Way galaxy
Researchers have found a colossal filament of gas called Cattail at the edge of the galaxy – it could be a new spiral arm of the Milky Way, but we have no clue how it formed