Hubble Telescope previously discovered eight rings of the gargantuan structure, but astronomers confirmed the ninth ring with ...

The researchers speculate that the first two rings in the Bullseye galaxy formed rapidly and spread outward. The creation of ...

In a study published today by The Astrophysical Journal Letters, a research team led by Yale University’s Imad Pasha ...

Imad Pasha, the lead researcher and a doctoral student at Yale University called it a "serendipitous discovery" because it ...

While eight rings around the galaxy were discovered by the Hubble Telescope, astronomers confirmed a ninth ring using data from the WM Keck Observatory in Hawaii.

NASA's Hubble Space Telescope spotted a cosmic Bullseye galaxy, revealing evidence of a rare kind of galactic collision.

In the 1920s, astronomers thought that the Milky Way was the entire universe. Hubble's discovery revealed a much bigger ...

Assembled from a total of 7,398 exposures taken over 411 individual pointings of the telescope, this image of our nearest major galactic neighbor, M31, is the largest Hubble mosaic to date.

The Hubble Space Telescope has provided the most detailed survey of the Andromeda galaxy, revealing new clues about its ...

On the night of October 5-6, 1923, Carnegie astronomer Edwin P. Hubble took a plate of the Andromeda Galaxy (Messier 31) with the Hooker 100-inch telescope of the Mount Wilson Observatory. This plate, ...

To celebrate the 100-year Edwin Hubble discovery that Andromeda was a galaxy outside our own, astronomers release the most ...

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