The Hubble Space Telescope has recently captured extraordinary images of a rapidly collapsing star system in the Andromeda Galaxy. This discovery offers a unique glimpse into stellar evolution and the ...

In this 2012 visualization, the Andromeda galaxy (left) appears in Earth's skies and begins to distort the Milky Way as the two galaxies merge. This hypothetical scenario was previously expected to ...

It's been textbook knowledge for over a century that our Milky Way galaxy is doomed to collide with another large spiral galaxy, Andromeda, in the next 5 billion years and merge into one even bigger ...

Astronomers have spotted a new comet, moving on a trajectory that indicates that it whizzed into our solar system from interstellar space and is just passing through. It's only the third time ...

Folks, it’s official: the object that astronomers recently spotted blowing through the outer solar system came from interstellar space. Yesterday, the intriguing stranger was named A11pl3Z. Now, it’s ...

COLUMBUS, Ohio — In a cosmic first for this decade, astronomers have identified a mysterious comet from another galaxy — marking only the third time in history that an interstellar object has entered ...

The Oort Cloud, an expanse of icy bodies in the far reaches of our solar system, is shown here in a scene from "Encounters in the Milky Way," a show at New York City's Hayden Planetarium that spawned ...