This annual showcase highlights some of the world's best space photography, with winners, runners-up, and highly commended images selected across ten categories. This year's overall winning image, ...

A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known universe. At a meeting of the American Astronomical Society in January 1925, a paper read by one of his ...

Each week, Astronomy magazine Senior Editor Michael E. Bakich, a master at explaining how to observe, posts a podcast about three or more objects or events you can see in the sky.

Now that the bright moon has left the evening sky, it's a good time to turn our attention to one of the most amazing sky objects, which is passing almost directly over our heads this week between 7:30 ...

Galaxies, Auroras, the Moon, our Sun, planets and more – the Royal Observatory Greenwich reveals the winners of the ZWO Astronomy Photographer of the Year 17 ...

On Oct. 4, 1923, Edwin Hubble took a photographic plate of the Andromeda Nebula (as it was known then) using the 100-inch Hooker telescope at Mount Wilson. The next night, he took another plate and ...