This process gradually cleared the fog of neutral gas, allowing ultraviolet light to travel freely and making the universe transparent to light. ・The cosmic dawn set the stage for the large ...

In other words, the universe suddenly went from being opaque to being transparent. Today, that first light is seen as the CMB ...

Researchers are trying to better understand the processes that allowed the universe to become fairly transparent. Mashable Light Speed Want more out-of-this world tech, space and science stories?

100 years ago, Hubble revealed a universe of galaxies that existed beyond ours — but he couldn't have done it without a little help. If we could go back 101 years, we would encounter a time when ...

Astronomers have discovered a supermassive black hole-powered quasar that may have helped "turn on the lights" in the early universe The intense brightening and dimming of this quasar was observed ...