Simulations find ghostly whirls of dark matter trailing galaxy arms – Ars TechnicaNewsScience News Simulations find ghostly whirls of dark matter trailing galaxy arms Ars Technica Source: Science News June 6, 2025/by PR PR http://gulfstrategic.com/gc/wp-content/uploads/logo_final.jpg 0 0 PR PR http://gulfstrategic.com/gc/wp-content/uploads/logo_final.jpg PR PR2025-06-06 13:42:162025-06-06 17:05:59Simulations find ghostly whirls of dark matter trailing galaxy arms – Ars Technica