Scientists thought it was an error when they saw super bright dots, indicating fully mature galaxies just 600 million years after Big Bang, suggesting previously unknown fast track

Two super-bright galaxies from universe's earliest years point to stars possibly being formed 100 million years before previously thought, though more data needed to verify claim

Images from orbiting system reveal indications of GLASS-z13, a galaxy that existed 13.5 billion years ago, just 300 million years after Big Bang