Galaxies’ missing mass may hide in gas clouds
Huge amounts of cold matter surround star-containing regions, study finds
By Gabriel Popkin, 13:06 PM January 13, 2014
OXON HILL, Md. — Vast reservoirs of previously undetected gas account for much of galaxies’ mass, according to research presented January 7 at a meeting of the American Astronomical Society. The finding could explain why earlier studies found far less mass in galaxies than cosmologists’ theories had predicted.
For more than a decade, astronomers have wondered about galaxies’ missing mass. Baryonic matter — the ordinary, visible stuff of the universe including the protons, neutrons and electron...
Source URL: https://www.sciencenews.org/article/galaxies’-missing-mass-may-hide-gas-clouds