Ashley Yeager

Contributing Writer

Light from the first galaxies clears the universe.
astrophysics

Discoveries Fuel Fight Over Universe’s First Light

A series of observations at the very edge of the universe has reignited a debate over what lifted the primordial cosmic fog.

About the author

Ashley Yeager is a science journalist whose work has appeared in Science News, Science News for Students, Nature and Sky & Telescope. She has an undergraduate degree in journalism from the University of Tennessee and a masters in science writing from the Massachusetts Institute of Technology.