Despite decades of searching for this signal, astronomers have yet to find it. The problem is that our Earth is too noisy, ...

Every large galaxy has ... fine spatial resolution that it can pick apart the X-ray emission from M31* from three other X-ray sources that crowd around it in the core of Andromeda.

Never before had scientists seen the phenomenon until they rallied colleagues around the world to view a galaxy far ... taking a picture with extremely high resolution. No single telescope ...

Spanning approximately 220,000 light-years across, the Andromeda Galaxy is the largest galaxy of the Local Group, which also ...

The Andromeda Galaxy's family of dwarfs are an enigma. First it was the unusual flat plane around which more than half of ...

Ladi Svoboda told Snopes that the photo was "real but artistically interpreted," while noting that similar shots were ...

The Andromeda galaxy's satellite galaxies exhibit a highly asymmetrical distribution, with over 80% concentrated on one side, challenging the standard cosmological model.