Image: Snapshots of the time evolution of a collision of two spiral galaxies with black holes at their center from a computer simulation. Color indicates temperature and brightness the gas density.

"To make progress towards a theory of galaxy formation, it is crucial to compare results and codes from different simulations. We have now done this by bringing together competing code groups behind ...

The Milky Way, our galaxy, has not always looked the way it does today. We see it as a band of stars across the sky, but from an external point of view, it would be a spiral galaxy with four arms and ...

You can watch how these galaxies coalesced over time and formed the familiar spiral disk we see today, thanks to a new set of ...

Galaxy formation simulations are an essential part of the modern toolkit of astrophysicists and cosmologists alike. Astrophysicists use the simulations to study the emergence of galaxy populations ...

The Milky Way may have emerged from a crowded cosmic environment filled with thousands of smaller galaxies, many of them unlike anything visible in our galactic neighborhood today. A new generation of ...

This article predates the current owners of Science Blog. It has not been reviewed under the current editorial process and is kept as part of the archive. This illustration shows the simulated ...

Enabled by supercomputing, University of Pretoria (UP) researchers have led an international team of astronomers that has provided deeper insight into the entire life cycle (birth, growth and death) ...

MEGATRON simulations suggest the Milky Way formed through the collisions and mergers of thousands of small galaxies in the ...

Cosmological simulations have become indispensable tools for understanding the assembly of galaxies within the framework of a ΛCDM Universe. By numerically integrating the coupled equations of gravity ...

Galaxies are far more than the sum of their stars. Long before stars even formed, dark matter clumped up and drew regular matter together with its gravity, providing the invisible scaffolding upon ...

This animation shows the simulated evolution of a galaxy over 200 million years. While the simulations look very similar with and without the machine learning AI model, the AI model performed 4 times ...