Keeping in mind that one light year is equal to about 6 trillion miles, the spiral disk of stars that is our Milky Way Galaxy spans 100,000 light years in diameter. The thickness of that disk, though, ...

At approximately 100,000 light years in diameter, the Milky Way’s vastness and the broader, ever-changing dynamics of the cosmos defy any attempt to fully understand our home galaxy and its history.

The James Webb Space Telescope has upended expectations again, revealing a massive spiral galaxy in the universe’s infancy ...

How galaxies assemble their stars and grow over billions of years remains one of the central questions in astronomy. Recent ...

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 ...

NASA's Hubble Space Telescope has captured a stunning new image of a galaxy that's over twice the size of our Milky Way. According to NASA, the gigantic elliptical galaxy (dubbed NGC 474) sits about ...

Clues about how galaxies like our Milky Way form and evolve and why their stars show surprising chemical patterns have been ...

The galaxy's discovery challenges our understanding of how galaxies were formed in the early period after the Big Bang.

Andromeda is a large galaxy, much bigger than our Milky Way. Andromeda contains about a trillion stars. Andromeda is moving towards our Milky Way. In billions of years, Andromeda and the Milky Way ...