Canadian Team Unveils Ghost Galaxy Almost Entirely Dark
A Canadian-led team using NASA’s Hubble, ESA’s Euclid and the Subaru Telescope has identified CDG-2, a candidate dark galaxy about 250 million light-years away that appears nearly invisible and is thought to be mostly dark matter, detected via a faint glow around four globular clusters. The galaxy is estimated to shine like only about 5 million stars, far fewer than the Milky Way, and researchers believe past interactions stripped away most of its stars—highlighting how indirect observations can reveal elusive cosmic structures and advance dark matter studies.
