Astronomers get burst of details from early universe

Unusually bright afterglow records what a galaxy was like soon after Big Bang

LONG BEACH, Calif. — Like a searchlight illuminating the distant past, the afterglow of a powerful gamma-ray burst has revealed what a stellar nursery in a remote galaxy looked like just 3 billion years after the Big Bang. The burst offers one of the earliest views of a star-forming region in the universe, which is now 13.7