But the stellar halo, as this roughly ball-shaped, less dense grouping of stars is called, stretches the limits of the Milky Way out to about 400,000 to 600,000 light-years across. Although it all ...

Astronomers have released a paper revealing that they have discovered the exact diameter of the Milky Way galaxy. The paper has been released by astronomers from Durham University in England, and more ...

Astronomers have discovered an extraordinary new giant radio galaxy with plasma jets 32 times the size of our Milky Way. Measuring 3.3 million light-years from end-to-end, the cosmic megastructure was ...

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, ...

On a warm June evening, viewers in Arizona watched the sky burst with color from the clouds of gas and dust that help create our home galaxy, the Milky Way. The Milky Way galaxy is around 100,000 ...

Computer simulations and observations of nearby galaxies helped astrophysicists determine that the Milky Way stretches nearly 2 million light-years across, Ken Croswell reported in “Astronomers find ...

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 ...

Understanding how the Milky Way formed means looking far beyond the bright spiral you see in the night sky. A new study led by Dr. Vivian Tan, who completed her doctorate at York University under the ...

Astronomers have at last identified what's believed to be the edge of the Milky Way galaxy. A team of astronomers from England used that farthest point to determine that the diameter of the Milky Way ...