Astronomers may have discovered a previously unknown type of astronomical object, nicknamed “Cloud-9,” that could shed light on dark matter, one of the biggest mysteries in the universe. Dark matter ...

Far beyond the bright pinwheels and glowing nebulae that dominate space photography, astronomers have finally confirmed something they had only modeled on paper: a galaxy that never quite turned on.

The object is considered a "failed galaxy" from the early universe that did not form stars. NASA's Hubble Space Telescope helped confirm the discovery. The discovery provides a rare opportunity to ...