The Big Bang may not have been the origin of the universe's most mysterious matter. Instead, dark matter could have been ...

Dark matter, which makes up 80 percent of all matter in the universe, may have formed in the very short time before the big ...

In 2016, astronomer Vera C. Rubin died at the age of 88. Three years later, Congress designated the NSF-DOE Vera C. Rubin Observatory in Chile in her honor. The telescope at the observatory will have ...