Dr. Sukanya Chakrabarti, the Pei-Ling Chan Endowed Chair in the College of Science at The University of Alabama in Huntsville (UAH), and her team have posted a new paper to the arXiv preprint server ...

Dark centre? A simulated version of the Milky Way galaxy. (Courtesy: AIP/ A. Khalatyan) Astronomers have long puzzled over the cause of a mysterious “glow” of very high energy gamma radiation ...

A halo of gamma-rays detected by the Fermi Space Telescope matches what would be expected if particles with masses around 500 times that of the proton are being annihilated near the Milky Way’s ...

For decades, dark matter has been treated as the unseen framework around which galaxies take shape. Even the smallest ...

NASA's Hubble Space Telescope captures the magnificent starry population of the Coma Cluster of galaxies, one of the densest known galaxy collections in the universe — and where the effect of dark ...

The more we look at the universe, the more we find things that we struggle to explain with our current theories of science. And every once in a while, we come across something that is remarkably ...

A faint dwarf galaxy drifting 45 million light-years from Earth may have joined one of astronomy’s strangest clubs. It belongs to a tiny set of galaxies that seem to exist without dark matter.

Every galaxy is thought to form at the center of a dark matter halo. Stars are formed when gravity within dark matter halos draws in gas, but astrophysicists don't know whether star-free dark matter ...

As a galactic archaeologist, my job is to reconstruct the past of our galaxy – and read the signs of its future.

Stephen has degrees in science (Physics major) and arts (English Literature and the History and Philosophy of Science), as well as a Graduate Diploma in Science Communication. Stephen has degrees in ...