If not in visible stars and galaxies, the most likely hiding place for the matter is in the dark space between galaxies.

The James Webb Space Telescope caught a glimpse of these violent bundles of gas and stars. The universe's first galaxies were hot messes, according to a recent study. During their younger days, they ...

“You build these machines not to confirm the paradigm but to break it,” European Space Agency senior science and exploration adviser Mark McCaughrean said. This logic underlies the iconoclastic ...

Data from NASA's James Webb Space Telescope has revealed dozens of small galaxies that played a starring role in a cosmic makeover that transformed the early universe into the one we know today. White ...

Space is packed with all sorts of weird and unexpected stuff, but this humongous, spinning string-thing raises a whole new ...

A monster galaxy from the early universe shows that the cosmos was rich with oxygen when it was only less than 3% of its present age, astronomers have found. The discovery raises questions about how ...

Why it's so special: What if a galaxy had only one spiral arm? Our solar system resides on the outskirts of one of the Milky Way galaxy's estimated four spiral arms, according to Space.com, but not ...

The vastness of space allows for a huge variety of structures to pop up all over the place. Even things we think of as one-and-done objects—like galaxies—come in quite a few shapes and sizes. Follow ...

The Hubble Space Telescope zooms in on NGC 45, a nearly invisible galaxy where bright pink nebulae mark regions of active star birth. This rare type of galaxy may hold answers to how galaxies form and ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.View full profile Alfredo has a PhD in Astrophysics and a Master's in Quantum ...

It’s been textbook knowledge for over a century that our Milky Way galaxy is doomed to collide with another large spiral galaxy, Andromeda, in the next 5 billion years and merge into one even bigger ...