Space


Recent Space Stories

Illustration of a hypothetical giant primordial black hole surrounded by glowing gas. New research constrains such objects as a significant source of dark matter based on their predicted imprint on ancient cosmic light.
Researchers used ancient cosmic light and galaxy-clustering constraints to limit giant primordial black holes. A substantial population would create stronger fluctuations than observations allow, narrowing one dark matter explanation without resolving the larger mystery.
Joseph Shavitupda