Sunday, September 6, 2026
Science

FAST finds two mysterious hydrogen clouds with no visible stars

Astronomers have found two clouds of hydrogen near the Whirlpool galaxy that appear to contain almost no stars. The clouds, discovered with China's FAST radio telescope, each contain roughly 3 million times the mass of the sun in hydrogen but have no detectable optical counterpart. Their properties...

FAST finds two mysterious hydrogen clouds with no visible stars
Image: Phys.org
Astronomers have found two clouds of hydrogen near the Whirlpool galaxy that appear to contain almost no stars. The clouds, discovered with China's FAST radio telescope, each contain roughly 3 million times the mass of the sun in hydrogen but have no detectable optical counterpart. Their properties are outlined in a new paper published in the Astronomy & Astrophysics journal on Aug. 4.

Originally published at Phys.org

The Morning Briefing

Subscribe to our Newsletter

Be the first to receive the latest news, market analysis and updates — delivered straight to your inbox.