Credit: ESO/José Francisco Salgado, EHT Collaboration With respect to structure, there are three types of galaxies: spiral, elliptical, and irregular. Scientists also classify galaxies according ...

NSF NOIRLab rings in the New Year with a glittering galaxyscape captured with the Department of Energy-fabricated Dark Energy ...

Space scientists have observed five galaxies colliding at a staggering 2 million mph. The dramatic impact has been observed in unprecedented detail in Stephan's Quintet, a nearby galaxy group ...