Though tiny, this newfound satellite galaxy around M31 offers big lessons — and questions — about how galaxies evolve.

The findings reveal unusual chemical signatures and offer new insights into the behavior of novas beyond the Milky Way.

NASA’s James Webb Space Telescope captured the stunning image of Cartwheel Galaxy. This landscape of “mountains” and “valleys” speckled with glittering stars is actually the edge of a nearby, young, ...

One of the great places to look for dwarf galaxies is the halo of the Andromeda galaxy (also known as Messier 31, or M31 for short), due to its relative proximity. UNIONS is so far the deepest ...

This is a wide-angle view of the distribution of known satellite galaxies orbiting the large Andromeda galaxy (M31), located 2.5 million light-years away. The Hubble Space Telescope was used to ...

It is a panoramic view of the neighboring Andromeda galaxy, located 2.5 million light-years away. It took over 10 years to make this vast and colorful portrait of the galaxy, requiring over 600 ...

Chinese astronomers have compiled the most comprehensive catalogue to date of the Andromeda Galaxy, known as Messier 31 (M31), utilizing data from China's Large Sky Area Multi-Object Fiber ...

The Godzilla Nebula is a cloud of gas and dust in the constellation Sagittarius that resembles the movie monster Godzilla. The image was captured by NASA's Spitzer Space Telescope.