Here’s what you’ll learn when you read this story:When analyzing early universe data, the Standard Model of Cosmology suggests that the universe should be more “clumpy” that what we observe. A new study suggests that interactions between the two most elusive particle types in the universe—dark matter and neutrinos—could help explain this discrepancy. Two of the most enigmatic particles in the known universe are dark matter (theorized to make up most of the matter in the cosmos) and neutrinos (weakling-interacting, nearly massless subatomic particles that can’t be observed directly). For the early universe, they relied on observations from the terrestrial Atacama Cosmology Telescope and the space-based Planck Telescope. By the team’s observations, dark matter and neutrinos react with a strength of about 10-4.