`Sideline quasars` stifled early galaxy formation

University of Colorado Boulder astronomers have claimed that "sideline quasars" teamed up with one of the brightest quasars glowing in the universe 11 billion years ago in order to prevent small galaxy formation.

Explosion during galaxy formation illuminated early universe

The birth of the first massive galaxies that lit up the early universe was an explosive event, happening faster and ending sooner than suspected, according to a analysis of data from the South Pole Telescope.