Galaxies

A new simulation suggests the possible head-on collision of our Milky Way galaxy with the neighboring Andromeda galaxy comes down to a coin flip.

The European Space Agency has launched a new citizen science project with Galaxy Zoo to classify tens of thousands of galaxies imaged by the Euclid space telescope.

Researchers using the Gaia space telescope studied some ancient stars near the sun, revealing that our corner of the Milky Way may be billions of years older than once thought.

The Euclid and XMM-Newton missions have combined to show the hidden, hot gas that fills an immense galaxy cluster 2.7 billion light-years away.

It's a fun question to tackle because it lets us dig into the messy, complicated, beautiful process of galaxy formation.

The Milky Way is warped, and the alignment of this warp is precessing backwards around the galaxy under the influence of a squashed dark matter halo.

Astronomers have found two of the Milky Way's missing satellite galaxies, a step toward earning a better understanding of dark matter.

Space mysteries If you're in the mood to destroy an entire galaxy, you have several options, depending on your desired level of destructiveness.

Gaia discovers the Milky Way's last major act of galactic cannibalism was surprisingly recent, as the space telescope counts the "wrinkles" of our galaxy to retell its history."