Satellite Galaxies All in a Row—How So?
Many satellite galaxies in the local universe are orbiting their parent galaxies in highly coherent planes—yet such structures are vanishingly rare in simulations. What gives?
Deciphering gamma-rays from the heart of Andromeda
Can dark matter annihilation explain multi-wavelength observations of Andromeda’s galactic center?
Yoga for dark matter: Making the Cold Dark Matter model more flexible
… and therefore more powerful. Describing dark matter as a fluid allows us to model dark matter candidates with great accuracy.
Clearing Up Stellar Streams with Gaia
What will new data from Gaia reveal about the formation and evolution of stellar streams in the Milky Way?
A Paleo-Detector for Dark Matter: How Ancient Rocks Could Help Unravel the Mystery
A “paleo-detector” may sound more like a Jurassic Park plot point than an astrophysics experiment, but today’s featured paper shows us that digging deep for ancient minerals may be an effective way to characterize the ever-mysterious nature of dark matter.
Probing the source of a mysterious (dark matter?) line in the laboratory
A laboratory astrophysics experiment calls into question the proposed dark matter origin of an unidentified spectral line at 3.5 keV