Our home galaxy might be larger than we first assumed, astronomers have found. A new model of the Milky Way has revealed that our galaxy is wider than we thought, according to a new paper in the ...

The supermassive black hole named Sagittarius A* lies in the middle of the Milky Way. Observations of S2 and other stars also helped astronomers calculate the extraordinary size and mass of ...

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 ...

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 ...

Chinese astronomers have revealed new findings about the size of the Milky Way galaxy, suggesting it’s significantly larger than previously thought. Their research, published in the prestigious ...

The James Webb Space Telescope has upended expectations again, revealing a massive spiral galaxy in the universe’s infancy that looks strikingly like a young Milky Way. Instead of a chaotic, ...

Astronomers have found that both the core of our Milky Way and the earliest proto-galaxies in the universe share a surprising trait: They are unusually calm and quiet in terms of harsh radiation. This ...