A team of astronomers may have detected the gamma-ray signature produced when antimatter particles, or positrons, collide ...

The Milky Way may have emerged from a crowded cosmic environment filled with thousands of smaller galaxies, many of them unlike anything visible in our galactic neighborhood today. A new generation of ...

Scientists suspect a black hole lurks at the center of most galaxies. The Milky Way’s black hole is called Sagittarius A*. (A* is scientist-code for “A-star.”) Its gravity, or attractive force, is so ...

You can watch how these galaxies coalesced over time and formed the familiar spiral disk we see today, thanks to a new set of ...

In the early days of the universe, our home looked very different from how it does today. Back then, the region in our ...

Research suggests a violent collision may have tipped the Milky Way’s disc over ...

Clues about how galaxies like our Milky Way form and evolve and why their stars show surprising chemical patterns have been revealed by a new study. The research, published in Monthly Notices of the ...

Image of the night sky above Paranal, Chile on 21 July 2007, taken by ESO astronomer Yuri Beletsky. A wide band of stars and dust clouds, spanning more than 100 degrees on the sky, is seen. This is ...

Astronomers think that some 10 billion years ago, our Milky Way galaxy collided with another galaxy, which they’ve dubbed the Gaia Sausage. And on July 21, 2026, a team of astronomers at the Royal ...

Near the centre of the Milky Way, a swarm of stars hurtles around a supermassive black hole at extraordinary speeds. Studying ...

Dark centre? A simulated version of the Milky Way galaxy. (Courtesy: AIP/ A. Khalatyan) Astronomers have long puzzled over the cause of a mysterious “glow” of very high energy gamma radiation ...

Add Yahoo as a preferred source to see more of our stories on Google. Thousands of sun "twins" spotted by a space telescope could shed new light on how our star came to host at least one life-friendly ...