Interstellar Comets vs. Dark Matter ⚡ экспресс
Original: "Contribution of interstellar objects to local dark matter density"
Accounting for interstellar comets changes the estimated amount of dark matter around us.
Links in the knowledge graph 1
We thought invisible dark matter was needed to explain the Galaxy's rotation. But maybe we simply forgot to account for billions of interstellar comets, weighing as much as thousands of black holes. If these 'aliens' made of ordinary matter are so common, then dark matter could be half as much, and our cosmic neighborhood would feel brighter and more understandable.
🎯 Some interstellar comets, like 3I/ATLAS, have been wandering the Galaxy almost since its birth—their age rivals that of the Milky Way itself.
🎬 This concept is reminiscent of Arthur C. Clarke's 'Rendezvous with Rama,' only with giant comets wandering for millions of years instead of an alien spaceship.