Dark matter permeates the Universe and surrounds every galaxies in the form of dark matter halos. We don’t really know dark matter works, as predictions of standard cosmology, Lambda Cold Dark Matter (ΛCDM), are way off from observations. Is this the death of Cold Dark Matter, or there are something more to it?
Galaxies die—at least when measured by how vigorously they produce stars. What causes them to die?
Observations of dust near the remains of a supernova in the center of our galaxy could have implications for dust production in the earliest galaxies.
This paper reports the results of a cosmological simulation, and how smooth accretion and mergers affect three important aspects of galaxy formation: stellar mass growth, size increase, and morphology changes.
How do you get a glimpse of dark matter? Stare really hard at the outskirts of galaxies and hope the matter isn’t totally dark.
Can stellar clusters be host to multiple star formation events? The authors of today’s paper take a closer look…