Decades ago, astronomers estimated that “ordinary” matter (basically everything that isn’t dark matter or dark energy) makes ...

As the Vera C. Rubin Observatory surveys the night sky, astrophysicists expect to unlock the secrets of dark matter, dark ...

‘The Elephant in the Universe’ Review: Dark Matter Mystery For decades, astronomers puzzled over the strange behavior of stars and galaxies. Something else had to be out there.

The cosmos is riddled with evidence that the universe began with an unfathomably ... will seek answers to the mystery of cosmic inflation. Before there was light, there was cosmic inflation.