"The discovery of this stream highlights how much is still unknown about the life histories of galaxies, how the hidden ...

Astronomers have identified a compact, superheated galaxy in the early universe that is churning out new suns at roughly 180 ...

So it’s confession time: I’ve been lying to you. I’ve said on many occasions that our Milky Way galaxy has a flat disk (like ...

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 ...

The current rate of star formation at the Galactic Center appears to be lower than in the rest of the Galaxy. A new study led ...

This image provided by the European Space Agency ESA, is Gaia’s all-sky view of our Milky Way Galaxy and neighboring galaxies, based on measurements of nearly 1.7 billion stars. The map shows the ...

Astronomers watched how the light brightened and dimmed near the event horizon of the Milky Way's supermassive black hole, ...

When Peter Predehl, an astrophysicist at the Max Planck Institute for Extraterrestrial Physics in Germany, first laid eyes on the new map of the universe’s hottest objects, he immediately recognized ...

Microquasars in our Milky Way galaxy have emerged as the most extreme particle engines, accelerating cosmic rays to ...

Our Milky Way is home to at least 17 billion planets that are similar in size to Earth, a new estimate suggests. That's more than two Earth-size planets for every person on the globe.Just how many are ...

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 ...

Our home galaxy is right on the border of a void so vast it's hard to picture. To get a better idea of its shape and size, a team of astronomers has mapped out the edges of this extragalactic ...