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

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 ...

Scientists estimate over 100 billion galaxies in the universe, each unique in shape and size, revealing the vastness of cosmic creation.

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 ...

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 ...

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) ...

I attended a star party in Wisconsin this past weekend during the prime of the fall color season. On the way down I pulled the car over more than once to take photos of the breathtaking maples and ...

The Siena Galaxy Atlas is a treasure trove of information for scientists studying the structure of the universe — and, it's free for the public to access. When you purchase through links on our site, ...

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 ...

Chris Impey does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...