NASA Chandra X-ray telescope data from galaxy cluster Abell 2146 showed a "shockwave that stretches for some 1.6 million ...

Collision reveals a galaxy in flux In a study published in The Astrophysical Journal, University of Arizona astronomers have traced the lack of rotation in stars to a direct collision between the SMC ...

A fleet of NASA missions has likely uncovered a collision between two ultradense stars in a tiny galaxy buried in a huge stream of gas. Astronomers have never seen this type of explosive event in an ...

This galactic collision might be more impactful than you think.

TUCSON, Ariz. (KVOA) - The Small Magellanic Cloud (SMC), one of the Milky Way's closest galactic neighbors, is undergoing a transformation visible from the southern hemisphere. This change is due to a ...

In a patch of sky about 1.2 billion light-years from Earth, astronomers have found a cosmic rarity: three galaxies caught in a merger, and all three of their central supermassive black holes are ...

A nearby galaxy long treated as a stable cosmic reference is revealing a far more dynamic and turbulent history.