The Triangulum Galaxy (M33) that is about 3 million light-years away from Earth. Among its most distinctive features are ionized hydrogen clouds, which are massive regions of starbirth.

The Triangulum galaxy Messier 33(M33). An amateur astronomer has discovered a new dwarf galaxy which is a satellite galaxy of M33. ESA/M. Durbin/J. Dalcanton/B. F. Williams/NASA ...

M33, the third largest galaxy in our group, is also moving toward the Milky Way (which is about 100,000 light-years in diameter). Nothing to worry about, however.

NASA’s Wide-field Infrared Survey Explorer (WISE) captured this image of one of our neighbors, the Messier 33 galaxy. Nicknamed the Triangulum galaxy, it is the third largest member in the Local ...

But right now, the team is searching for masers in M33’s much larger neighbour, the Andromeda Galaxy, which is the most distant object visible to the naked eye.

Our Milky Way Galaxy and the Andromeda Galaxy are destined to collide nearly head on in a few billion years. In one possible scenario, the smaller Pinwheel Galaxy (M33) misses the action during ...