The bold question-askers at What If examine what would happen if the Milky Way and Andromeda collided.

The Andromeda galaxy, our closest spiral neighbor to the Milky Way, becomes prominently visible in the night sky during ...

Huge eruptions from the Milky Way’s supermassive black hole in the distant past may have sterilized much of the inner galaxy ...

Our Milky Way is far from calm — it ripples with a colossal wave spanning tens of thousands of light-years, revealed by ESA’s ...

Historically, the Andromeda Galaxy (M31) was a subject of extensive debate, initially considered a "nebulous smear" and later central to the "island universe" hypothesis proposing its status as an ...

Astronomers see no stars ejected from the center of our Milky Way galaxy, giving them important information about the Sgr A* black hole.

The galaxy our planet inhabits is called the Milky Way for the simple reason that, as seen from our world, its impossible-to-count collection of stars looks like a band of milky white light. In all ...

The month is packed with skywatching highlights—including two galaxies visible to the naked eye and a rare glimpse of the innermost planet. A cormorant crosses the face of the full moon in ...

"No low-frequency radio image of the entire Southern Galactic Plane has been published before, making this an exciting ...

Astronomers from the International Centre of Radio Astronomy Research (ICRAR) have created the largest low-frequency radio ...

Astronomers from the International Centre of Radio Astronomy Research (ICRAR) have released an incredible image of the Milky Way shining in low-frequency radio light, revealing a spectacular realm ...

The Milky Way is a rich and complex environment. We see it as a luminous line stretching across the night sky, composed of ...