Space Exploration
Apr. 10th, 2026 06:06 pmScientists think dark matter might come in two forms
Dark matter may come in two flavors—finally explaining why its signals appear in some galaxies but vanish in others.
A mysterious glow of gamma rays at the center of the Milky Way has long hinted at dark matter, but the lack of similar signals in smaller dwarf galaxies has cast doubt on that idea. Now, researchers propose a bold twist: dark matter might not be a single particle at all, but a mix of two different types that must interact with each other to produce detectable signals.
Dark matter may come in two flavors—finally explaining why its signals appear in some galaxies but vanish in others.
A mysterious glow of gamma rays at the center of the Milky Way has long hinted at dark matter, but the lack of similar signals in smaller dwarf galaxies has cast doubt on that idea. Now, researchers propose a bold twist: dark matter might not be a single particle at all, but a mix of two different types that must interact with each other to produce detectable signals.