SUNSET: 
No Signal from Cosmic Dawn
Four years after one experiment found tentative signs of the "cosmic dawn," the era of the first stars, another experiment finds nothing.
Early Star Formation Presents New Cosmic Mystery
New observations suggest that stars were forming just 250 million years after the Big Bang — a record-breaker that will likely open a new line of cosmological inquiry.
Hubble Spies Faint Galaxies, Bountiful in Early Universe
Hubble has spotted more than 100 small, faint galaxies in the young universe, common as dust bunnies but previously out of reach of even the best telescopes.
Dwarf Galaxies Packed a Mighty Punch
Light from the puniest galaxies played a bigger role in shaping the early universe than previously thought.