The spiral galaxy Messier 33 (M33), also known as the Triangulum Galaxy, is the third-largest member of the Local Group of galaxies, after the Andromeda galaxy (M31) and our own Milky Way.

Astronomers have made a surprising discovery that challenges current theories of galaxy formation. A colossal disk-shaped ...

On the left is a composite image of the Triangulum galaxy, made by overlaying individual images taken by the Hubble Space Telescope as part of the PHATTER survey. Distributions of old and young ...

The Serpens Nebula is a prime location for studying the formation of stars and planets. It is approximately 1,300 light-years from Earth.