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

From nebulas and galaxies to star clusters, the sun and the moon, here’s what to image in the night sky using a smart ...

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 ...

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) ...

Like cool pictures of the cosmos? You came to the right place. It's called the Vera C. Rubin Observatory, and even though it’s located in Chile, it's funded and operated by the U.S. government. In a ...

Looking for a sky event this week? Check out our full Sky This Week column. December 10: Spot Neptune With no Moon in the ...

Astronomy can be a difficult topic for newcomers. Like any scientific field, it has its own jargon and buzzwords—and terms with meanings that can be not only odd but downright counterintuitive. The ...

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 ...

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 ...