This idea is called the big bang model—which is an unfortunate name because it brings to mind a cosmos expanding like an ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American Last month when scientists announced new ...

A new simulation tool lets scientists explore whether self-interacting dark matter could reshape galaxies from the inside out.

The James Webb Space Telescope (JWST) has unveiled a remarkable cosmic phenomenon that scientists are calling the “Cosmic Owl.” This strange structure, located billions of light-years away, was formed ...

Will the Milky Way and Andromeda galaxies collide in several billion years? The odds have changed with a new study using 100,000 supercomputer simulations. Credit: NASA's Goddard Space Flight Center ...

Something unusual may have risen from the ashes of an epic smashup. In the middle of a galaxy shaped like an infinity symbol — thought to be the result of two galaxies colliding — sits a supermassive ...

Mid-infrared observations from NASA's James Webb Space Telescope, shown in white, gray, and red, are combined here with X-ray data from NASA's Chandra X-ray Observatory, highlighted in blue. Together, ...

Understanding how galaxies grow has long stood as one of astronomy’s core challenges. Over time, scientists have gathered evidence that galaxy mergers matter. When two galaxies move close, gravity can ...

Located billions of light-years away, the "Cosmic Owl" is a pair of colliding ring galaxies spotted by the JWST. It's also an "exceptional natural laboratory" for studying how galaxies evolve. When ...

Two colliding galaxies have been found to be reorganizing their dwarf satellites, potentially solving a major conundrum plaguing the standard model of cosmology. When you purchase through links on our ...

Physicists have unveiled a new way to simulate a mysterious form of dark matter that can collide with itself but not with normal matter. This self-interacting dark matter may trigger a dramatic ...

Using a supercomputer, the researchers created a high-resolution simulation. Credit: Lund University Using a supercomputer simulation, a research team at Lund University in Sweden has succeeded in ...