A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known universe. At a meeting of the ...

Nebulae are some of the most breathtaking sights in the universe — vast clouds of gas and dust where stars are born, or where they meet their spectacular ends. From the delicate wisps of the Veil ...

The article details various types of deep-sky objects observable by amateur astronomers, including double stars, variable stars, open and globular star clusters, emission, planetary, and reflection ...

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 ...

Our understanding of the true nature of the cosmos relies on measurements of its expansion, but cosmologists have been ...

The best JWST images reveal galaxies, nebulae, and cosmic structures in stunning infrared clarity. These James Webb photos ...

Babylonian astronomers created early star catalogs as early as the 12th century BCE, later expanding these to include celestial motions of the Sun, Moon, and planets by 1000 BCE. The Messier (M) ...

The Euclid space telescope team has released its first science images. They show sparkling clusters of galaxies, an astonishingly sharp image of a nearby spiral galaxy and a colourful cloud of ...

Physics and astronomy professor Herbert W, Hamber considers himself a "backyard astro-photographer," although his photos are far from amateur. The University of California, Irvine professor makes the ...

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 ...

The Andromeda galaxy helped Edwin Hubble settle a great debate in astronomy. Stocktrek Images via Getty Images A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known ...

This article was originally featured on The Conversation. A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known universe. At a meeting of the American Astronomical ...