Edwin Hubble's revelation in 1924 that the Andromeda Nebula was, in fact, an 'island universe,' was a pivotal moment in our ...

On Sunday November 23, 1924, 100 years ago this month, readers perusing page six of the New York Times would have found an ...

Hubble had already used this knowledge in his 1924 discovery that the Andromeda nebula, containing a variable star, was more than 900,000 light years from Earth -- way beyond our own galaxy -- a ...

Photo: Andromeda nebula plate with Hubble's handwritten circle around the variable star he discovered In 1919 American astronomer Edwin Hubble began work at the Mount Wilson Observatory in ...

The infrared-light image captured by the JWST's MIRI (Mid-Infrared Instrument) reveals the galaxy in a totally different way ...

This sweeping bird's-eye view of a portion of the Andromeda galaxy (M31) is the sharpest image ever taken of our galactic next-door neighbor. Disclaimer: AAAS and EurekAlert! are not responsible ...

Fast forward to four years later, October 5/6, 1923. Hubble was reviewing plates he’d taken of Andromeda (M31) with the 100-inch reflector on a routine search for novae (exploding stars ...

One hundred years ago, on November 23, 1924, a groundbreaking discovery reshaped our understanding of the universe. A small ...

Outlined in teal is the region of Andromeda covered by the Panchromatic Hubble Andromeda Treasury (PHAT) mosaic, the largest Hubble mosaic ever created. Overlaid on the PHAT region and outlined in ...

One of the greatest astronomer's, who changed our entire understanding of the universe, was born 135 years ago today ...

An curved arrow pointing right. In 3.75 billion years, Earth's Milky Way Galaxy will collide with the Andromeda Galaxy. Over the next several billion years, the two galaxies will rip each other ...

Edwin Hubble, a renowned astronomer, revolutionized our understanding of the universe. He proved the existence of galaxies ...